Any sound which is unwanted or interferes with HEARING other sounds.
Noise present in occupational, industrial, and factory situations.
Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz.
The comparison of the quantity of meaningful data to the irrelevant or incorrect data.
Personal devices for protection of the ears from loud or high intensity noise, water, or cold. These include earmuffs and earplugs.
The audibility limit of discriminating sound intensity and pitch.
A weight-carrying structure for navigation of the air that is supported either by its own buoyancy or by the dynamic action of the air against its surfaces. (Webster, 1973)
The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness.
Any visible result of a procedure which is caused by the procedure itself and not by the entity being analyzed. Common examples include histological structures introduced by tissue processing, radiographic images of structures that are not naturally present in living tissue, and products of chemical reactions that occur during analysis.
Use of sound to elicit a response in the nervous system.
The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations.
Processes that incorporate some element of randomness, used particularly to refer to a time series of random variables.
Permanent roads having a line of rails fixed to ties and laid to gage, usually on a leveled or graded ballasted roadbed and providing a track for freight cars, passenger cars, and other rolling stock. Cars are designed to be drawn by locomotives or sometimes propelled by self-contained motors. (From Webster's 3d) The concept includes the organizational and administrative aspects of railroads as well.
The testing of the acuity of the sense of hearing to determine the thresholds of the lowest intensity levels at which an individual can hear a set of tones. The frequencies between 125 and 8000 Hz are used to test air conduction thresholds and the frequencies between 250 and 4000 Hz are used to test bone conduction thresholds.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
The science pertaining to the interrelationship of psychologic phenomena and the individual's response to the physical properties of sound.
The process whereby an utterance is decoded into a representation in terms of linguistic units (sequences of phonetic segments which combine to form lexical and grammatical morphemes).
Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.
The process whereby auditory stimuli are selected, organized, and interpreted by the organism.
Psychophysical technique that permits the estimation of the bias of the observer as well as detectability of the signal (i.e., stimulus) in any sensory modality. (From APA, Thesaurus of Psychological Index Terms, 8th ed.)
The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It is also called audition.
The minimum amount of stimulus energy necessary to elicit a sensory response.
The perceived attribute of a sound which corresponds to the physical attribute of intensity.
AUTOMOBILES, trucks, buses, or similar engine-driven conveyances. (From Random House Unabridged Dictionary, 2d ed)
Computer-based representation of physical systems and phenomena such as chemical processes.
Ability to make speech sounds that are recognizable.
A usually four-wheeled automotive vehicle designed for passenger transportation and commonly propelled by an internal-combustion engine using a volatile fuel. (Webster, 1973)
The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)
Measurement of the ability to hear speech under various conditions of intensity and noise interference using sound-field as well as earphones and bone oscillators.
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.
A test to determine the lowest sound intensity level at which fifty percent or more of the spondaic test words (words of two syllables having equal stress) are repeated correctly.
Continuous frequency distribution of infinite range. Its properties are as follows: 1, continuous, symmetrical distribution with both tails extending to infinity; 2, arithmetic mean, mode, and median identical; and 3, shape completely determined by the mean and standard deviation.
Electrical waves in the CEREBRAL CORTEX generated by BRAIN STEM structures in response to auditory click stimuli. These are found to be abnormal in many patients with CEREBELLOPONTINE ANGLE lesions, MULTIPLE SCLEROSIS, or other DEMYELINATING DISEASES.
The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.
The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.
A general term for the complete or partial loss of the ability to hear from one or both ears.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Ability to determine the specific location of a sound source.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc.
A type of non-ionizing radiation in which energy is transmitted through solid, liquid, or gas as compression waves. Sound (acoustic or sonic) radiation with frequencies above the audible range is classified as ultrasonic. Sound radiation below the audible range is classified as infrasonic.
NEURAL PATHWAYS and connections within the CENTRAL NERVOUS SYSTEM, beginning at the hair cells of the ORGAN OF CORTI, continuing along the eighth cranial nerve, and terminating at the AUDITORY CORTEX.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.
The acoustic aspects of speech in terms of frequency, intensity, and time.
Electronic hearing devices typically used for patients with normal outer and middle ear function, but defective inner ear function. In the COCHLEA, the hair cells (HAIR CELLS, VESTIBULAR) may be absent or damaged but there are residual nerve fibers. The device electrically stimulates the COCHLEAR NERVE to create sound sensation.
A broad category of sleep disorders characterized by either hypersomnolence or insomnia. The three major subcategories include intrinsic (i.e., arising from within the body) (SLEEP DISORDERS, INTRINSIC), extrinsic (secondary to environmental conditions or various pathologic conditions), and disturbances of circadian rhythm. (From Thorpy, Sleep Disorders Medicine, 1994, p187)
Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.
The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS.
Differential response to different stimuli.
Sound that expresses emotion through rhythm, melody, and harmony.
Elements of limited time intervals, contributing to particular results or situations.
Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.
Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generic devices include air-conduction hearing aids and bone-conduction hearing aids. (UMDNS, 1999)
Loss of sensitivity to sounds as a result of auditory stimulation, manifesting as a temporary shift in auditory threshold. The temporary threshold shift, TTS, is expressed in decibels.
Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992)
Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.
Tests of the ability to hear and understand speech as determined by scoring the number of words in a word list repeated correctly.
A dimension of auditory sensation varying with cycles per second of the sound stimulus.
Hearing loss in frequencies above 1000 hertz.
Self-generated faint acoustic signals from the inner ear (COCHLEA) without external stimulation. These faint signals can be recorded in the EAR CANAL and are indications of active OUTER AUDITORY HAIR CELLS. Spontaneous otoacoustic emissions are found in all classes of land vertebrates.
The ability to differentiate tones.
Persons with any degree of loss of hearing that has an impact on their activities of daily living or that requires special assistance or intervention.
The cochlear part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The cochlear nerve fibers originate from neurons of the SPIRAL GANGLION and project peripherally to cochlear hair cells and centrally to the cochlear nuclei (COCHLEAR NUCLEUS) of the BRAIN STEM. They mediate the sense of hearing.
Any enterprise centered on the processing, assembly, production, or marketing of a line of products, services, commodities, or merchandise, in a particular field often named after its principal product. Examples include the automobile, fishing, music, publishing, insurance, and textile industries.
Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.
The physical effects involving the presence of electric charges at rest and in motion.
Large vessels propelled by power or sail used for transportation on rivers, seas, oceans, or other navigable waters. Boats are smaller vessels propelled by oars, paddles, sail, or power; they may or may not have a deck.
Procedures for correcting HEARING DISORDERS.
Methods of creating machines and devices.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Part of an ear examination that measures the ability of sound to reach the brain.
The selecting and organizing of visual stimuli based on the individual's past experience.
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.
Surgical insertion of an electronic hearing device (COCHLEAR IMPLANTS) with electrodes to the COCHLEAR NERVE in the inner ear to create sound sensation in patients with residual nerve fibers.
A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The time from the onset of a stimulus until a response is observed.
Improvement in the quality of an x-ray image by use of an intensifying screen, tube, or filter and by optimum exposure techniques. Digital processing methods are often employed.
Sounds used in animal communication.
Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.
Abnormal or excessive excitability with easily triggered anger, annoyance, or impatience.
Physical surroundings or conditions of a hospital or other health facility and influence of these factors on patients and staff.
The science or study of speech sounds and their production, transmission, and reception, and their analysis, classification, and transcription. (Random House Unabridged Dictionary, 2d ed)
Gradual bilateral hearing loss associated with aging that is due to progressive degeneration of cochlear structures and central auditory pathways. Hearing loss usually begins with the high frequencies then progresses to sounds of middle and low frequencies.
Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.
The posterior pair of the quadrigeminal bodies which contain centers for auditory function.
Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
The real or apparent movement of objects through the visual field.
The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Tests for central hearing disorders based on the competing message technique (binaural separation).
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
Conditions that impair the transmission of auditory impulses and information from the level of the ear to the temporal cortices, including the sensorineural pathways.
Discrete concentrations of energy, apparently massless elementary particles, that move at the speed of light. They are the unit or quantum of electromagnetic radiation. Photons are emitted when electrons move from one energy state to another. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Communication through a system of conventional vocal symbols.
A genus of the family Chinchillidae which consists of three species: C. brevicaudata, C. lanigera, and C. villidera. They are used extensively in biomedical research.
Computer systems or networks designed to provide radiographic interpretive information.

Desynchronizing responses to correlated noise: A mechanism for binaural masking level differences at the inferior colliculus. (1/1528)

We examined the adequacy of decorrelation of the responses to dichotic noise as an explanation for the binaural masking level difference (BMLD). The responses of 48 low-frequency neurons in the inferior colliculus of anesthetized guinea pigs were recorded to binaurally presented noise with various degrees of interaural correlation and to interaurally correlated noise in the presence of 500-Hz tones in either zero or pi interaural phase. In response to fully correlated noise, neurons' responses were modulated with interaural delay, showing quasiperiodic noise delay functions (NDFs) with a central peak and side peaks, separated by intervals roughly equivalent to the period of the neuron's best frequency. For noise with zero interaural correlation (independent noises presented to each ear), neurons were insensitive to the interaural delay. Their NDFs were unmodulated, with the majority showing a level of activity approximately equal to the mean of the peaks and troughs of the NDF obtained with fully correlated noise. Partial decorrelation of the noise resulted in NDFs that were, in general, intermediate between the fully correlated and fully decorrelated noise. Presenting 500-Hz tones simultaneously with fully correlated noise also had the effect of demodulating the NDFs. In the case of tones with zero interaural phase, this demodulation appeared to be a saturation process, raising the discharge at all noise delays to that at the largest peak in the NDF. In the majority of neurons, presenting the tones in pi phase had a similar effect on the NDFs to decorrelating the noise; the response was demodulated toward the mean of the peaks and troughs of the NDF. Thus the effect of added tones on the responses of delay-sensitive inferior colliculus neurons to noise could be accounted for by a desynchronizing effect. This result is entirely consistent with cross-correlation models of the BMLD. However, in some neurons, the effects of an added tone on the NDF appeared more extreme than the effect of decorrelating the noise, suggesting the possibility of additional inhibitory influences.  (+info)

A pilot study on the human body vibration induced by low frequency noise. (2/1528)

To understand the basic characteristics of the human body vibration induced by low frequency noise and to use it to evaluate the effects on health, we designed a measuring method with a miniature accelerometer and carried out preliminary measurements. Vibration was measured on the chest and abdomen of 6 male subjects who were exposed to pure tones in the frequency range of 20 to 50 Hz, where the method we designed was proved to be sensitive enough to detect vibration on the body surface. The level and rate of increase with frequency of the vibration turned out to be higher on the chest than on the abdomen. This difference was considered to be due to the mechanical structure of the human body. It also turned out that the measured noise-induced vibration negatively correlated with the subject's BMI (Body Mass Index), which suggested that the health effects of low frequency noise depended not only on the mechanical structure but also on the physical constitution of the human body.  (+info)

Inhalation exposure of animals. (3/1528)

Relative advantages and disadvantages and important design criteria for various exposure methods are presented. Five types of exposures are discussed: whole-body chambers, head-only exposures, nose or mouth-only methods, lung-only exposures, and partial-lung exposures. Design considerations covered include: air cleaning and conditioning; construction materials; losses of exposure materials; evenness of exposure; sampling biases; animal observation and care; noise and vibration control, safe exhausts, chamber loading, reliability, pressure fluctuations; neck seals, masks, animal restraint methods; and animal comfort. Ethical considerations in use of animals in inhalation experiments are also discussed.  (+info)

Expiratory time determined by individual anxiety levels in humans. (4/1528)

We have previously found that individual anxiety levels influence respiratory rates in physical load and mental stress (Y. Masaoka and I. Homma. Int. J. Psychophysiol. 27: 153-159, 1997). On the basis of that study, in the present study we investigated the metabolic outputs during tests and analyzed the respiratory timing relationship between inspiration and expiration, taking into account individual anxiety levels. Disregarding anxiety levels, there were correlations between O2 consumption (VO2) and minute ventilation (VE) and between VO2 and tidal volume in the physical load test, but no correlations were observed in the noxious audio stimulation test. There was a volume-based increase in respiratory patterns in physical load; however, VE increased not only for the adjustment of metabolic needs but also for individual mental factors; anxiety participated in this increase. In the high-anxiety group, the VE-to-VO2 ratio, indicating ventilatory efficiency, increased in both tests. In the high-anxiety group, increases in respiratory rate contributed to a VE increase, and there were negative correlations between expiratory time and anxiety scores in both tests. In an awake state, the higher neural structure may dominantly affect the mechanism of respiratory rhythm generation. We focus on the relationship between expiratory time and anxiety and show diagrams of respiratory output, allowing for individual personality.  (+info)

Neural correlates of gap detection in three auditory cortical fields in the Cat. (5/1528)

Neural correlates of gap detection in three auditory cortical fields in the cat. Mimimum detectable gaps in noise in humans are independent of the position of the gap, whereas in cat primary auditory cortex (AI) they are position dependent. The position dependence in other cortical areas is not known and may resolve this contrast. This study presents minimum detectable gap-in-noise values for which single-unit (SU), multiunit (MU) recordings and local field potentials (LFPs) show an onset response to the noise after the gap. The gap, which varied in duration between 5 and 70 ms, was preceded by a noise burst of either 5 ms (early gap) or 500 ms (late gap) duration. In 10 cats, simultaneous recordings were made with one electrode each in AI, anterior auditory field (AAF), and secondary auditory cortex (AII). In nine additional cats, two electrodes were inserted in AI and one in AAF. Minimum detectable gaps based on SU, MU, or LFP data in each cortical area were the same. In addition, very similar minimum early-gap values were found in all three areas (means, 36.1-41.7 ms). The minimum late-gap values were also similar in AI and AII (means, 11.1 and 11.7 ms), whereas AAF showed significantly larger minimum late-gap durations (mean 21.5 ms). For intensities >35 dB SPL, distributions of minimum early-gap durations in AAF and AII had modal values at approximately 45 ms. In AI, the distribution was more uniform. Distributions for minimum late-gap duration were skewed toward low values (mode at 5 ms), but high values (+info)

Comparison of four methods for assessing airway sealing pressure with the laryngeal mask airway in adult patients. (6/1528)

We have compared four tests for assessing airway sealing pressure with the laryngeal mask airway (LMA) to test the hypothesis that airway sealing pressure and inter-observer reliability differ between tests. We studied 80 paralysed, anaesthetized adult patients. Four different airway sealing pressure tests were performed in random order on each patient by two observers blinded to each other's measurements: test 1 involved detection of an audible noise; test 2 was detection of end-tidal carbon dioxide in the oral cavity; test 3 was observation of the aneroid manometer dial as the pressure increased to note the airway pressure at which the dial reached stability; and test 4 was detection of an audible noise by neck auscultation. Mean airway sealing pressure ranged from 19.5 to 21.3 cm H2O and intra-class correlation coefficient was 0.95-0.99. Inter-observer reliability of all tests was classed as excellent. The manometric stability test had a higher mean airway sealing pressure (P < 0.0001) and better inter-observer reliability (P < 0.0001) compared with the three other tests. We conclude that for clinical purposes all four tests are excellent, but that the manometric stability test may be more appropriate for researchers comparing airway sealing pressures.  (+info)

The supporting-cell antigen: a receptor-like protein tyrosine phosphatase expressed in the sensory epithelia of the avian inner ear. (7/1528)

After noise- or drug-induced hair-cell loss, the sensory epithelia of the avian inner ear can regenerate new hair cells. Few molecular markers are available for the supporting-cell precursors of the hair cells that regenerate, and little is known about the signaling mechanisms underlying this regenerative response. Hybridoma methodology was used to obtain a monoclonal antibody (mAb) that stains the apical surface of supporting cells in the sensory epithelia of the inner ear. The mAb recognizes the supporting-cell antigen (SCA), a protein that is also found on the apical surfaces of retinal Muller cells, renal tubule cells, and intestinal brush border cells. Expression screening and molecular cloning reveal that the SCA is a novel receptor-like protein tyrosine phosphatase (RPTP), sharing similarity with human density-enhanced phosphatase, an RPTP thought to have a role in the density-dependent arrest of cell growth. In response to hair-cell damage induced by noise in vivo or hair-cell loss caused by ototoxic drug treatment in vitro, some supporting cells show a dramatic decrease in SCA expression levels on their apical surface. This decrease occurs before supporting cells are known to first enter S-phase after trauma, indicating that it may be a primary rather than a secondary response to injury. These results indicate that the SCA is a signaling molecule that may influence the potential of nonsensory supporting cells to either proliferate or differentiate into hair cells.  (+info)

Influence of head position on the spatial representation of acoustic targets. (8/1528)

Sound localization in humans relies on binaural differences (azimuth cues) and monaural spectral shape information (elevation cues) and is therefore the result of a neural computational process. Despite the fact that these acoustic cues are referenced with respect to the head, accurate eye movements can be generated to sounds in complete darkness. This ability necessitates the use of eye position information. So far, however, sound localization has been investigated mainly with a fixed head position, usually straight ahead. Yet the auditory system may rely on head motor information to maintain a stable and spatially accurate representation of acoustic targets in the presence of head movements. We therefore studied the influence of changes in eye-head position on auditory-guided orienting behavior of human subjects. In the first experiment, we used a visual-auditory double-step paradigm. Subjects made saccadic gaze shifts in total darkness toward brief broadband sounds presented before an intervening eye-head movement that was evoked by an earlier visual target. The data show that the preceding displacements of both eye and head are fully accounted for, resulting in spatially accurate responses. This suggests that auditory target information may be transformed into a spatial (or body-centered) frame of reference. To further investigate this possibility, we exploited the unique property of the auditory system that sound elevation is extracted independently from pinna-related spectral cues. In the absence of such cues, accurate elevation detection is not possible, even when head movements are made. This is shown in a second experiment where pure tones were localized at a fixed elevation that depended on the tone frequency rather than on the actual target elevation, both under head-fixed and -free conditions. To test, in a third experiment, whether the perceived elevation of tones relies on a head- or space-fixed target representation, eye movements were elicited toward pure tones while subjects kept their head in different vertical positions. It appeared that each tone was localized at a fixed, frequency-dependent elevation in space that shifted to a limited extent with changes in head elevation. Hence information about head position is used under static conditions too. Interestingly, the influence of head position also depended on the tone frequency. Thus tone-evoked ocular saccades typically showed a partial compensation for changes in static head position, whereas noise-evoked eye-head saccades fully compensated for intervening changes in eye-head position. We propose that the auditory localization system combines the acoustic input with head-position information to encode targets in a spatial (or body-centered) frame of reference. In this way, accurate orienting responses may be programmed despite intervening eye-head movements. A conceptual model, based on the tonotopic organization of the auditory system, is presented that may account for our findings.  (+info)

Define noise pollution. noise pollution synonyms, noise pollution pronunciation, noise pollution translation, English dictionary definition of noise pollution. n. Environmental noise that is annoying, distracting, or physically harmful. Also called sound pollution . n annoying or harmful noise in an environment...
Um Prime Music zu nutzen, gehen Sie bitte in Ihre Musikbibliothek und übertragen Sie Ihr Konto auf (DE). After the commercial breakthrough of their 1979 album … Rock and Roll Aint Noise Pollution is a song by the rock band AC/DC. Das Lied erreichte Platz 15 in Großbritannien und in Irland. Cause rock and roll aint no riddle, man Check out the tab » Rock and roll aint gonna die Rock and Roll Aint Noise Pollution. Year: 2018 18 Views. Rock and roll aint noise pollution The co-writer/guitarist on many Alice Cooper hits, Dick was also Lou Reeds axeman on the Rock n Roll Animal album. Zur Musikbibliothek Schließen 1 Rock and Roll Aint Noise Pollution … (Live 1983) (C) 2007 Leidseplein Presse B.V. Azt már eddig is tudtuk, hogy az új Exodus album, a 2014-es Blood In Blood Out utódja, a nyárra várható Persona Non Grata címmel. Itll always be with us Rock n roll aint noise pollution Rock n roll aint gonna die Rock n roll aint noise pollution Rock n roll it ...
live in a noisy world, and much of that noise is made by humans. Traffic, machinery, electronics-its a constant barrage of sound. Sound is very important for humans and all Animals to communicate and to discuss different things. but now a days sound is creating Disturbance In the form of Noise pollution. When loudness increases From Its Basic Limit It causes Noise Pollution. Standard unit of sound is decibel (Db) noise pollution is created by human activities such as honking motor vehicle, big big machines are making noise while doing work like digging ground or construction. Loudspeakers are also a major problem for environment. Music Parties, politician assembly, DJ, wedding ceremonies and many more events are using loudspeakers that eventually effects environment. Noise pollution is affecting environment in many ways like -· Affecting a range of animals across multiple habitats.· Animals are changing or migrating from their natural behaviors or relocating to avoid noisy areas.· Noise ...
by Lisa Goines, RN; Louis Hagler, MD. Medscape Today ( April 10, 2007. Abstract. Noise is defined as unwanted sound. Environmental noise consists of all the unwanted sounds in our communities except that which originates in the workplace. Environmental noise pollution, a form of air pollution, is a threat to health and well-being. It is more severe and widespread than ever before, and it will continue to increase in magnitude and severity because of population growth, urbanization, and the associated growth in the use of increasingly powerful, varied, and highly mobile sources of noise. It will also continue to grow because of sustained growth in highway, rail, and air traffic, which remain major sources of environmental noise. The potential health effects of noise pollution are numerous, pervasive, persistent, and medically and socially significant. Noise produces direct and cumulative adverse effects that impair health and that degrade residential, social, working, and ...
and more. Symptoms of Environmental Noise. The early symptoms of environmental noise pollution might be a mild sensation of stuffy ears or ringing in the ears known as tinnitus. Sometimes the only sign of early damage to the inner ear from noise is difficulty understanding speech and hearing high frequency noise. Depending upon the health issue, a large number of symptoms can manifest in individuals that look like the disease. For example, if hypertension were caused by environmental noise the symptoms might be headaches, fainting or noise bleeds. If ischemic heart disease was caused by environmental noise, the symptoms might be chest pain or difficulty breathing.. Noise at Work Employees in a workplace should not be exposed to anything greater than 85 dBA (decibala) per eight-hours daily. Workplace noise for construction workers allows a higher limit of 90 dBA per eight hours of noise exposure. However, outdoor noise should never exceed between 60 and 65 dBA. Workplace noise can result from a ...
Recent research and the current scenario as well as future market potential of ​Global Noise Detection And Monitoring Market 2017-2021″ globally.. ​Noise detection and monitoring products include noise dosimeters, noise monitors, and sound meters, which are used to measure and monitor excessive noise to control the noise levels. Noise is one of the most common occupational hazards, and exposure to high noise level can create psychological stress, reduce productivity, and cause hearing disabilities. Noise monitoring consists of real-time data transmission and dynamic noise maps, which store and transmit the noise levels of each location under observation to a central location.. The global noise detection and monitoring market to grow at a CAGR of 6.42% during the period 2017-2021.. Covered in this report The report covers the present scenario and the growth prospects of the global noise detection and monitoring market for 2017-2021. To calculate the market size, the report considers the ...
Recent research and the current scenario as well as future market potential of ​Global Noise Detection And Monitoring Market 2017-2021″ globally.. ​Noise detection and monitoring products include noise dosimeters, noise monitors, and sound meters, which are used to measure and monitor excessive noise to control the noise levels. Noise is one of the most common occupational hazards, and exposure to high noise level can create psychological stress, reduce productivity, and cause hearing disabilities. Noise monitoring consists of real-time data transmission and dynamic noise maps, which store and transmit the noise levels of each location under observation to a central location.. The global noise detection and monitoring market to grow at a CAGR of 6.42% during the period 2017-2021.. Covered in this report The report covers the present scenario and the growth prospects of the global noise detection and monitoring market for 2017-2021. To calculate the market size, the report considers the ...
In low light condition, the signal-to-noise ratio (SNR) is low and thus the captured images are seriously degraded by noise.Since low light images contain much noise in flat and dark regions, contrast enhancement without considering noise characteristics causes serious noise amplification. In this paper, we propose low light image enhancement based on two-step noise suppression. First, we perform noise aware contrast enhancement using noise level function (NLF). NLF is used to get a noise aware histogram which prevents noise amplification, and we use the noise aware histogram in contrast enhancement. However, the increase of intensity by contrast enhancement reduces the visibility threshold, which makes noise visible by human eyes. Second, we utilize a just noticeable difference (JND) model from luminance adaptation to suppress noise based on human visual perception. Experimental results show that the proposed method successfully enhances contrast in low light images while minimizing noise ...
The program for the conference was organized around the following eight working groups 1 Noise-induced hearing loss, 2 noise and communication, 3 nonauditory physiological effects induced by noise, 4 influence of noise on performance and behavior, 5 noise-disturbed sleep, 6 community response to noise, 7 noise and animals, and 8 noise and other agents physical and chemical. Each group provided a broad review of research in their respective area followed by invited papers on recent advances. At the end of each session either the chairman or a designated individual summarized the session and proposed directions for further study. Additional papers not falling under the above categories were presented in a separate session. Topics in this group included noise measurement, noise reduction, and expense of controlling noise.
Early buyers will receive 10% customization on reports.. The major factors driving the growth of the noise monitoring market include the growing occupational hearing impairment in industries, stringent government policies, demand for reducing noise pollution in urban areas, need for noise monitoring systems at airports to optimize profit and capacity, rising installation of all-in-one environmental monitoring solutions, and requirement of noise monitoring infrastructures in mining, wind plant, petrochemical industry, and harbor.. Permanent noise monitoring expected to hold the largest market by 2023. Permanent noise monitoring held the largest share of the noise monitoring market in 2016. This can be attributed to the wide installation of permanent noise monitoring in places where regular measurement is backed by stringent government policies. Also, permanent noise monitoring is used mainly for real-time noise monitoring.. Cellular connectivity market for noise monitoring to grow at the highest ...
Underwater Wireless Communication, largely dependent on the acoustic communication between the machines, is largely affected by various types of noise in the shallow and deep water. However ambient noise which is due to multiple sources (e.g. shipping, wind) and no one source dominates. Ambient noise masks the acoustic signal to a large extent. Hence today it has drawn the attention of the experts to reduce its effect on the received signal. This paper discusses ambient noise problem and devises a new wavelet thresholding method to reduce its effect. Afterwards a comparative study on statistical parameters is shown to prove the efficiency of the devised method.
In signal processing, white noise is a random signal with a constant power spectral density.[1] The term is used, with this or similar meanings, in many scientific and technical disciplines, including physics, acoustic engineering, telecommunications, statistical forecasting, and many more. White noise refers to a statistical model for signals and signal sources, rather than to any specific signal.A white noise image.In discrete time, white noise is a discrete signal whose samples are regarded as a sequence of serially uncorrelated random variables with zero mean and finite variance; a single realization of white noise is a random shock. Depending on the context, one may also require that the samples be independent and have the same probability distribution (in other words i.i.d is a simplest representative of the white noise). In particular, if each sample has a normal distribution with zero mean, the signal is said to be Gaussian white noise.[2]The samples of a white noise signal may be ...
Kamp, I. van, Breugelmans, O., Poll, R. van, Baliatsas, C. Burden of disease from exposure to low frequency noise: a Dutch inventory. In: ICBEN Congress Proceedings paper. 12th International Commission on Biological Effects of Noise (ICBEN) Congress on Noise as a Public Health Problem, June 2017, Zurich ...
TY - CONF. T1 - Spectral probability density as a tool for marine ambient noise analysis. AU - Merchant, N.D.. AU - Barton, T.R.. AU - Thompson, P.M.. AU - Pirotta, E.. AU - Dakin, D.T.. AU - Dorocicz, J.. PY - 2013. Y1 - 2013. N2 - The empirical probability density of the power spectral density has been successfully applied as tool to assess signal variability and sensor system performance in the seismic literature. This paper presents the application of this analysis method to underwater ambient noise measurements, and demonstrates its utility in assessing the field performance of passive acoustic monitoring systems and the statistical distribution of noise levels across the frequency spectrum. Using example datasets from an autonomous passive acoustic recorder in the Moray Firth, Scotland, UK, and a cabled subsea observatory in the Strait of Georgia, British Columbia, we show how this method can reveal data limitations such as persistent tonal components and insufficient dynamic range, and ...
The stochastic resonance (SR) phenomenon induced by a multiplicative periodic signal in a logistic growth model with correlated noises is studied by using the theory of signal-to-noise ratio (SNR) in the adiabatic limit. The expressions of the SNR are obtained. The effects of multiplicative noise intensity α and additive noise intensity D, and correlated intensity λ on the SNR are discussed respectively. It is found that the existence of a maximum in the SNR is the identifying characteristic of the SR phenomena. In comparison with the SR induced by additive periodic signal, some new features are found: (1) When SNR as a function of λ for fixed ratio of α and D, the varying of α can induce a stochastic multi-resonance, and can induce a re-entrant transition of the peaks in SNR vs λ; (2) There exhibits a doubly critical phenomenon for SNR vs D and λ, i.e., the increasing of D (or λ) can induce the critical phenomenon for SNR with respect to λ (or D); (3) The doubly stochastic resonance ...
New European research has found that exposure to annoying levels of noise could increase the risk of atrial fibrillation, a heart rhythm irregularity also known as heart flutter which can lead to stroke, heart failure and other serious health conditions.. Carried out by researchers from the Department of Cardiology at the Mainz University Medical Center, Germany, the team looked at data taken from the Gutenberg Health Study (GHS), one of the largest studies of its kind which has already looked at the effects of noise pollution on health.. For the new research the team surveyed 15,010 men and women aged 35 to 74 taking part in the GHS, asking them how much they had been annoyed in recent years by road, rail, construction, trade, neighborhood noise and aircraft noise during both the day and night.. Atrial fibrillation was diagnosed using participants medical history and/or ECG tests.. The results showed that as the level of noise annoyance increases, so does frequency of atrial fibrillation, with ...
Article Buying Noise Measurement Equipment: how to cut costs, not quality. At a time when budgets are under strain, the Pulsar Model 14, ultra-simple digital sound level meter offers a compliant, reliable, yet affordable noise meter. It is the prefer...
A planning condition for the development required reasonable noise levels to be met within the residential buildings when they were ventilated at a rate to control overheating. If that could not be achieved with the windows open, an alternative method of ventilation would be required.. In addition to motorway traffic, the scheme had to consider noise generated within the development, which was to include new transport routes, an energy centre and commercial units.. The noise levels across the site were modelled using SoundPLAN software, which enables noise levels to be predicated on each façade based on future traffic data. It can predict the incident noise levels for each floor height, taking into account the shielding provided by the proposed first-phase buildings and the landscaping of the area next to the M11.. Once the external noise levels had been established for each room, the necessary noise reduction could be established.. The indoor noise levels required were 40dB LAeq,T during the ...
Looking for Noise Control? Find out information about Noise Control. The process of obtaining an acceptable noise environment for a particular observation point or receiver, involving control of the noise source, transmission... Explanation of Noise Control
In this note, we address the estimation of the noise level in magnitude magnetic resonance (MR) images in the absence of background data. Most of the methods proposed earlier exploit the Rayleigh distributed background region in MR images to estimate the noise level. These methods, however, cannot be used for images where no background information is available. In this note, we propose two different approaches for noise level estimation in the absence of the image background. The first method is based on the local estimation of the noise variance using maximum likelihood estimation and the second method is based on the local estimation of the skewness of the magnitude data distribution. Experimental results on synthetic and real MR image datasets show that the proposed estimators accurately estimate the noise level in a magnitude MR image, even without background data.. ...
In response to the continuing problem of noise induced hearing loss NIHL among mine workers, the National Institute for Occupational Safety and Health NIOSH has conducted numerous noise surveys in coal preparation plants. The research, consisting of worker dose monitoring, task observations, and equipment noise profiling, was completed in eight separate preparation plants. Worker dose monitoring was conducted for three shifts in most cases. Workers experiencing higher than allowable doses were task-observed for one full shift to correlate dose to noise source(s). Finally, noise levels on all floors, and in lunchrooms and control rooms, were characterized. Results indicate that only workers who routinely spend a significant portion of their shift in the plants (away from the control rooms) are susceptible to overexposure from noise. Certain pieces of equipment (screens, centrifuges, sieve bends) are the loudest primary noise sources responsible for the worker noise exposures ...
Stimuli were generated by ATTR software, see Figure 1 for examples of stimuli (Hudak et al., 2019; Lister et al., 2011; Lister et al., 2006). The stimuli consist of narrow band noise geometrically centered on 1 or 2 kHz. The leading noise burst is 300 ms in length and the following noise burst varies between 250 ms and 350 ms. For each trial, a standard stimulus and target stimulus are presented to the listener. In the standard stimulus, a 1 ms gap separates two noise bursts so that similar gating transients are present in both the standard and the target stimuli (in which the size of the gap separating the noise bursts is varied adaptively). The order of presentation of standard and target stimuli is varied randomly. The listener is instructed to select the target stimulus, and the smallest detectable gap is determined (Lister et al., 2006). The ATTR consists of two subtests: the within-channel (WC) subtest in which both noise bursts are centered on 2 kHz and the across-channel (AC) subtest in ...
Paragraph: 005 Reference ID: 30-005-20140306. How to recognise when noise could be a concern?. At the lowest extreme, when noise is not noticeable, there is by definition no effect. As the noise exposure increases, it will cross the no observed effect level as it becomes noticeable. However, the noise has no adverse effect so long as the exposure is such that it does not cause any change in behaviour or attitude. The noise can slightly affect the acoustic character of an area but not to the extent there is a perceived change in quality of life. If the noise exposure is at this level no specific measures are required to manage the acoustic environment.. As the exposure increases further, it crosses the lowest observed adverse effect level boundary above which the noise starts to cause small changes in behaviour and attitude, for example, having to turn up the volume on the television or needing to speak more loudly to be heard. The noise therefore starts to have an adverse effect and ...
But what are the implications for wildlife, particularly given how important sound production and hearing are for a range of behaviours, such as locating food, avoiding predators and finding a mate? For example, bats and dolphins rely on high frequency sonar to detect highly mobile prey, while great tits, red deer and grasshoppers are among the many species that advertise their dominance and desirability using vocalisations. Elephants can even use sound to determine the threat presented by different human groups.. Scientific interest in the effects of noise pollution on wildlife has intensified over the past decade and we are now developing a better understanding of how noise can impact behaviour, population and community level processes across a range of animal species. Using experimental and observational approaches to characterise and explore the specific effects of different noise sources, the evidence generated from these studies is considerable, particularly among songbirds and marine ...
The present study investigated the psychosocial complaints related to urban noise among the population of Curitiba. We used a questionnaire of closed-set questions to collect data on demographics and psychosocial reactions to environmental noise when subjects are at home. Eight hundred and ninety-two individuals (892) participated of the study. The main noise sources associated with discomfort or
This study investigates the effects of acoustic conditions on speech comprehension, rather than speech intelligibility as often reported in existing literature. Sets of 15-minute-long listening comprehension tests were developed based on the format of the Test of English for International Communication (TOEIC). Each test set includes four types of tasks: matching aural phrases to photographs, selecting appropriate responses to aural questions, and answering questions after listening to conversations (between two talkers) and talks (single talker). Within the Nebraska acoustics test chamber, native-English-speaking participants are asked to perform these tests under 15 acoustic conditions, from combinations of three background noise levels (RC-30, 40 and 50) and five mid-frequency reverberation times (0.4 to 1.2 seconds). The background noise levels are varied via an Armstrong i-Ceiling system, while the reverberation times are simulated from convolving the anechoic test signals with binaural room
Very soon I will built a small anechoic chamber to test really quiet PSUs and also I plan to push noise measurements to another level. Here is a teaser, since I just finished the relevant code and made the necessary modifications to my equipment :)
Vehicle traffic is the major source of noise in urban environments, which in turn has multiple impacts on health. In this paper we investigate the spatial distribution of community noise exposures and annoyance. Traffic data from the City of San Francisco were used to model noise exposure by neighborhood and road type. Remote sensing data were used in the model to estimate neighborhood-specific percentages of cars, trucks, and buses on arterial versus non-arterial streets. The model was validated on 235 streets. Finally, an exposure-response relationship was used to predict the prevalence of high annoyance for different neighborhoods. Urban noise was found to increase 6.7 dB (p | 0.001) with 10-fold increased street traffic, with important contributors to noise being bus and heavy truck traffic. Living along arterial streets also increased risk of annoyance by 40%. The relative risk of annoyance in one of the Citys fastest growing neighborhoods, the South of Market Area, was found to be 2.1 times that
City dwellers are bombarded by more noise now than in past times when residents lived in rural, agrarian communities. Article discusses the noise levels in cities and how people can reduce this noise. Reducing noise increases your abilitiy to concentrate, sleep, and work efficiently. Article discusses physiological responses to noise as it relates to blood pressure and sleep quality.
Pasternack Enterprises coaxial RF noise sources (also known as RF noise generators) are diode-based microwave components that produce white noise for system performance evaluation such as noise figure. RF noise sources / noise generators from Pasternack are commonly used in production and lab test environments.
Washington, July 14 : A new study conducted by Northwestern University researchers offers an unparalleled look at how noise affects the nervous systems ability to transcribe sounds whose subtle differences are key to success with language and reading.. The study suggests that distinguishing such sounds is too much to ask of the nervous system of a subset of poor readers whose hearing is fine, but whose brains have trouble differentiating the ba, da and ga sounds in a noisy environment.. The b, d and g consonants have rapidly changing acoustic information that the nervous system has to resolve to eventually match up sounds with letters on the page, said Nina Kraus, Hugh Knowles Professor of Communication Sciences and Neurobiology and director of Northwesterns Auditory Neuroscience Laboratory, where the work was performed.. According to the researcher, the brains unconscious faulty interpretation of sounds makes a big difference in how words ultimately will be ...
In this work, we apply homodyne detection to investigate the frequency-resolved photon statistics of a cw light field emitted by a driven-dissipative semiconductor system in real time. We demonstrate that studying the frequency dependence of the photon number noise allows us to distinguish intrinsic noise properties of the emitter from external noise sources such as mechanical noise while maintaining a sub-picosecond temporal resolution. We further show that performing postselection on the recorded data opens up the possibility to study rare events in the dynamics of the emitter. By doing so, we demonstrate that in rare instances, additional external noise may actually result in reduced photon number noise in the emission ...
Abstract: Acousticians and mechanical engineers specify design noise levels for occupied spaces and systems components (units of equipment). While it is widely accepted that occupied spaces should have a ``balanced noise spectrum, individual units of mechanical, electrical, plumbing, and other building systems equipment do not. Of the three commonly used systems of rating interior noise---noise criteria, room criteria, and noise criteria--balanced curves---only noise criteria lends itself to specifying a maximum noise level for equipment. How can the need for a ``balanced noise environment for people be reconciled with the fact that radiated noise from a fan-powered variable air volume box is predominately in the 125- and 250-Hz octave bands with little sound energy at 1000 Hz and higher? A discussion of the need for a clear standard that is easily understandable to specifiers, clients, manufacturers, and users is undertaken, with suggestions of how to resolve the differing needs of these ...
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How the human brain retains relevant vocal information while suppressing irrelevant sounds is one of the ongoing challenges in cognitive neuroscience. Knowledge of the underlying mechanisms of this ability can be used to identify whether a person is distracted during listening to a target speech, especially in a learning context. This paper investigates the neural correlates of learning from the speech presented in a noisy environment using an ecologically valid learning context and electroencephalography (EEG). To this end, the following listening tasks were performed while 64-channel EEG signals were recorded: (1) attentive listening to the lectures in background sound, (2) attentive listening to the background sound presented alone, and (3) inattentive listening to the background sound. For the first task, 13 lectures of 5 min in length embedded in different types of realistic background noise were presented to participants who were asked to focus on the lectures. As background noise, multi-talker
Noise exposure is considered a threat to human health, causing not only annoyance or hearing impairment but also hypertension and...
Anthropogenic noise pollution (ANP), a globally invasive phenomenon, has an impact on natural systems; however, a majority of the studies have only been conducted on a few species at local levels.
The main source of environmental (ambient) noise is transport. Road traffic is the most widespread source. Percentage of the population exposed to different noise levels is high. People in urban areas are exposed to the highest levels of noise, because of concentration of population and traffic in the cities. Most worrying is a significant increase in noise at night, because people are most sensitive to noise at that time.. ...
The global noise control system market size was valued at USD XX million in 2019 and is predicted to register a CAGR of XX% from 2020 to 2026.. The report covers the current estimate and forecast for noise control system market on a global and regional level. The report provides an in-depth analysis of the noise control system market for the period 2016 - 2026, wherein 2019 is the base year and the period from 2020 to 2026 is the forecast period. Data for 2016- 2018 has been included as historical information. The study provides a holistic perspective on market growth, throughout the above forecast period in terms of revenue estimates (in US$ MN), across different geographies, which includes North America (NA), Europe (EU), Asia Pacific (APAC), Middle East & Africa (MEA) and Latin America (LATAM).. The report provides cross-sectional analysis of the noise control system market in terms of market estimates and forecasts for all the segments across different geographic regions. The report covers ...
We present an optical flow based method for noise reduction in image sequences. To prevent artefacts caused by optical flow imperfections, we propose a method to estimate these imperfections. We use the estimation to adaptively choose either a temporal or a spatial based noise reduction algorithm to be applied in different image zones. Our results have shown that an important noise reduction can be achieved with the proposed method, without the drawbacks of the simpler methods. The method has provided important noise reductions even with complex image sequences ...
The effects of tinnitus can often be minimized by a combination of counseling and/or sound stimulation. If you suspect you have tinnitus, the first step is to undergo a tinnitus and hearing evaluation by an audiologist. Tinnitus counseling with an experienced healthcare professional may help to improve chances of successfully managing your tinnitus and regain your quality of life.. Many people learn to ignore their tinnitus and are able to function in their daily lives without interference, but others may need the assistance of noise generators. For those individuals whose tinnitus is more bothersome, the introduction of external noise using electronic noise generators may help minimize the awareness of tinnitus. These devices may include: noise machines that produce white or environmental noise which are often effective when trying to fall asleep or concentrate, hearing aids which can help alleviate the tinnitus of those with hearing loss just by delivering amplification; or ear level masking ...
What is a Decibel?. The decibel (very often abbreviated to dB) is a unit of measurement used to express the ratio of two values. It is often attributed to the level of sound produced by almost everything including electronic devices such as TVs, speech, jet engines and power tool etc.. In 2005 a new piece of legislation was brought into play called the Control of Noise at Work Regulation 2005. It placed a direct responsibility on the employer within Great Britain to actively reduce the risk of noise to their employees by controlling the amount of noise they are exposed to. The act was implemented throughout most industries in April 2007 with the music & entertainment sector receiving the policy just over a year later.. Noise within the workplace can cause serious communication problems as loud or intrusive volumes of noise will interfere with potential warnings such as fire alarms. The loud noise can also make people less aware of their surroundings. All these issues added together can lead ...
Sound turns to noise when it is unpleasant or harmful to the ears. Attention is not usually given to noise pollution as compared to air...
Noise, especially very loud noise and chronic exposure to loud noise, is usually considered as detrimental during the pregnancy. In most European countries, health regulations forbid pregnant women to work in surroundings with a level over 80 dB continuous noise and rapid impulse noise changes of 40 dB, which is much less than the noise of a firearm. In the United States, the Department of Labor limits for impulse (not continuous) noise is 140 dB (Dept.of Labor Bulletin #334, 1971) with additional regulations for ongoing noise. The sound levels of firearms are about 125-140 dB for rimfire rifles, 140-150dB for rimfire pistols, and 150-160 dB for centerfire rifles, pistols,and shotguns.. Intrauterine measurements in some studies showed that the fetus was not significantly protected against loud noises. One study,in human volunteers, found noise only diminished by 10 dB at 4000Hz. As a comparison, foam plugs generally offer a protection of 12 to 20dB, and are considered as the least effective ...
A casino gaming machine includes a speaker structured to produce a game audio output having a volume, an ambient noise level (ambient noise level) detector structured to detect an ambient noise level proximate the gaming machine, and an dynamic volume controller configured to regulate the volume of the game audio output in relation to a detected ambient noise level. The gaming machine can produce a plurality of game audio outputs, wherein the game audio output volumes can be differentially adjusted in relation to a detected ambient noise level. Differential volume adjustment can be on the basis of a parameter, such as sound output class.
Sound can be understood as the pressure fluctuation in a medium. Acoustics is the study of sound propagation in a medium; AeroAcoustics deals with the study of noise generated by air. Examples include the flow around the landing gear of an aircraft, or the buffeting noise caused when driving along with the window/sunroof open. As a result of the stringent conditions imposed on the Aircraft industries to limit noise pollution, focus is now shifting towards predicting the noise generated by a given aerodynamic flow. Similarly, in the automotive industry, passenger comfort is of great importance, so OEMs are keen to minimise unnecessary noise sources. AeroAcoustics is an advanced field of fluid dynamics in which the flow scale is removed to the acoustic levels. The first advance in the field of AeroAcoustics was made by Sir James Lighthill when he presented an Acoustic Analogy. With proper manipulation of the Euler equations, he derived a wave equation based on pressure as the fluctuating ...
Seismic surveys are a key activity during maritime oil exploration. During the surveys, sound is repeatedly produced underwater to create detailed pictures of below the sea floor, allowing explorers to accurately find oil and gas.. Seismic surveys and vessel operations create marine noise and can have negative impacts on wildlife. They can change an animals hearing structure or their physiology. The noise can also affect an animals behaviour such as altering their feeding or breeding behaviours or perhaps their escape responses. Over the long-term (months to years), these impacts may accumulate, affecting the health of individuals and potentially the health of the population. As part of the North West Shoals to Shore program, AIMS is investigating the long and short-term impacts of marine noise from the petroleum industry on plankton, pearl oysters and fish.. The studies are also measuring the quality and amount of noise pollution produced by the seismic surveys and vessel activity to produce ...
Many workplaces are subject to complex noise environments where impulsive noises are embedded in the continuous background noise. Current noise guidelines recommend an exposure limit based on the equal energy hypothesis (EEH), thus overlooking the effect of temporal and spectral variations of the noise. This practice is widely believed inaccurate to assess the risk of complex or impulsive noises.
Abstract: This paper introduces two new algorithms to accurately estimate Kalman filter process noise online for robust orbit determination in the presence of dynamics model uncertainties. Common orbit determination process noise techniques, such as state noise compensation and dynamic model compensation, require offline tuning and a priori knowledge of the dynamical environment. Alternatively, the process noise covariance may be estimated through adaptive filtering. However, current adaptive filtering techniques often use ad hoc methods to ensure the estimated process noise covariance is positive semi-definite, and cannot accurately extrapolate over measurement outages. Furthermore, adaptive filtering techniques do not constrain the discrete time process noise covariance according to the underlying continuous time dynamical model, and there has been limited work on adaptive filtering with colored process noise. To overcome these limitations, a novel approach is developed which optimally fuses ...
Stomach noise - MedHelps Stomach noise Center for Information, Symptoms, Resources, Treatments and Tools for Stomach noise. Find Stomach noise information, treatments for Stomach noise and Stomach noise symptoms.
"Noise , Romance Short Film". Omeleto. Archived from the original on August 23, 2020. Retrieved May 8, 2020. Gordon, David ( ... She then portrayed Sophie, a deaf woman, in the short film Noise (2018) which debuted in October 2018 at the Austin Film ... "Cinemalayon Pictures - Noise". Cinemalayon Pictures. July 2020. Archived from the original on August 23, 2020. Retrieved May 8 ...
Cain, Nick (2009). "Noise". In Young, Rob (ed.). The Wire Primers: A Guide to Modern Music. London: Verso. p. 34. Couture, ... he was a guest performer with the noise group Wolf Eyes at the FIMAV Festival. Black Vomit, a recording of the concert, was ...
"What Happened to Omaha's Liberation School? By Dawaune Hayes". NOISE. Retrieved 2019-03-26. "African Americans -- Social ...
Milne, Susan (February 1990). "The making of a metaphor". Noise. Vancouver, Canada: 23. Austin, Ian (7 January 1990). "Mad mob ...
VR248.{{cite AV media notes}}: CS1 maint: others in cite AV media (notes) (link) Seabaugh, Julie (January 25, 2007). "Noise". ...
"Musicians Pay Tribute To Robin Gibb of the Bee Gees". Noise. Archived from the original on 4 October 2013. Retrieved 28 May ...
"Stomp and Stammer: News • Music • Noise • Opinion • Garbage". 21 October 2013. ...
In 2005 he published the short story collection Noise. His third novel, My Revolutions, was published in August 2007. His ... Noise. London: Penguin. ISBN 9780141023106, OCLC 835475787 2007. My Revolutions. London: Penguin. OCLC 920237941 2011. Gods ...
"Stomp And Stammer: News • Music • Noise • Opinion • Garbage". Stomp And Stammer. 2013-10-21. Retrieved 2020-11-11. Owings, ...
"Noise". "Introducing: Black Coast". 8 November 2018. "Band of the Day: Black Coast". 10 March 2019. "Black Coast: "Life's not ...
... noise. In the 1932 Tarzan radio serial with James Pierce the yell sounds like "Taaar-maan-ganiii". In the ape language ...
"Popical Island Compilation #3 , Noise". 25 June 2012. Retrieved 24 June 2013. "Various - Popical Island #3 , ...
"Noise". Gruar, Tim (11 September 2013). "Blacklistt's Marcus Powell has a chat before album release". Rip It Up. Archived from ... Massey, Bob (July 2002). "Noise live". Spin. Vol. 18, no. 7. p. 44. ISSN 0886-3032. Ankeny, Jason. "AqME - Artist Biography". ...
". "Noise". "Black Coast - Outworld Album Launch Review - Planetmosh". 27 November 2021. "BLACK COAST // Outworld". 16 November ...
NOISE. Retrieved June 21, 2021. "Stockton Kings Announce 2021-22 Training Camp Roster". October 25, 2021. Retrieved ...
NOISE is a music-making app for iOS and Android devices and is also the software system for "Roli Blocks" Equator is a software ... "NOISE". Retrieved 15 April 2017. "Seaboard GRAND wins Design of the Year award in the Product category". Sound ... The company created the "Noise" app and the Equator software synthesizer. It has also acquired a number of companies including ...
Noise • Hazardous Waste • Solid Waste • Recycling Q54 Climate • Natural Disasters and Their Management • Global Warming Q55 ... Transportation Noise R42 Government and Private Investment Analysis • Road Maintenance • Transportation Planning R48 Government ...
Lampinen, Teemu (14 May 2006). "Gris - Isn't It Better This Way (Albumi)". Noise. Retrieved 1 October 2009. Sara Melleri at ...
"Music: Anberlin". NOISE. October 11, 2006. Archived from the original on July 5, 2007. Retrieved May 1, 2007. "Interview With ... Hassani, Laila (September 23, 2007). "Anberlin". Archived from the original on October 15, 2007. Retrieved ... on one of their songs off the record Kid A there is a background noise on the song "Everything in Its Right Place" (about 2 ... minutes 31 seconds into the song). While Thom (Yorke) is singing try to say I always thought the background noise sounded like ...
Another shortcoming of Lasswell's model is that it does not take the effects of noise into account. Noise refers to influences ... For example, crackling sounds during a telephone call are one form of noise. A further criticism focuses on the fact that ... Another criticism is that it does not take the effects of noise into account. However, not everyone agrees with these ... Chandler, Daniel; Munday, Rod (10 February 2011). "noise". A Dictionary of Media and Communication. OUP Oxford. ISBN 978-0-19- ...
As Fisher Black noted, "noise" in trading price data makes it difficult to test hypotheses. One method for avoiding this noise ... Black, F (1986). "Noise". Journal of Finance. 41 (3): 529-43. doi:10.1111/j.1540-6261.1986.tb04513.x. Caginalp, G.; Constantine ...
"Rebel Noise - Tour Dates for Brooklyn rock band The Shondes". Retrieved 2016-06-29. Giovagnoli, Gavin Paul. Artist ... "Stomp And Stammer: News • Music • Noise • Opinion • Garbage". 21 October 2013. Retrieved 9 September 2020 ...
Noise. Noise is defined as small fluctuations that are unrelated to a signal, which can occur in neurons and synaptic ... Uncertainty arises because of neural noise, but also because inferences about the state of the world may not be correct (e.g. ... Since there is a motor noise in the neural system that is proportional to the activation of the muscles, the faster movements ... To address that, a new model was later proposed to incorporate the motor noise and to unify cost-benefit and speed-accuracy ...
At this stage, noise may interfere with the transmission and distort the message. Once the message reaches the receiver, the ... It can be used to confirm that the message was received and to mitigate the influence of noise. For example, the message may ... For example, the message may be distorted by external noise. But errors can also occur at the stages of encoding and decoding ... For this reason, it does not involve a detailed technical discussion of the channel and influences of noise, unlike the Shannon ...
... noise; and all aspects of the above-referenced jurisdiction related to the Department of Homeland Security." Official website " ...
"Noise , Split Magazine - IIT Madras: We Skid You Not". Archived from the original on 2012-04-26. Retrieved 2011-12-06. "Theatre ...
Some theorists distinguish between environmental noise and semantic noise. Environmental noise distorts the signal on its way ... Semantic noise occurs during encoding or decoding, for example, when an ambiguous word in the message is not interpreted by the ... In both cases, noise may interfere and distort the message. Models of communication are classified in various ways depending on ... Shannon and Weaver focus most of their attention on the technical level by discussing how noise can interfere with the signal ...
"Robbie Williams Kicks Off Tour in Budapest SETLIST". Noise!!. The Noise Network Pty Ltd. 6 May 2014. Retrieved 11 May 2014. ...
Noise. Tour.", taking the AGBC's intense live show around the country for 4 months. In 2011, Alicia and Marlene returned to ...
The comments of Noise! magazine's "DH" (most likely Noise! contributor Dave Henderson) showed greater prescience. "DH" said ... DH (14-27 October 1982). "Depeche Mode: A Broken Frame". Noise!. Maconie, Stuart (17 February 1990). "Sin Machine". NME. London ...
Noise-induced hearing loss can result from a one-time exposure to a very loud sound, blast, or impulse, or from listening to ... Preventing Noise-Induced Hearing Loss. Hearing loss caused by exposure to loud sound is preventable.5 To reduce their risk of ... Learn about the causes of noise-induced hearing loss and how to prevent it, so your kids-and you-can have healthy hearing for ... Estimated prevalence of noise induced hearing threshold shifts among children 6 to 19 years of age: The third national health ...
The NIOSH Sound Level Meter app combines the best features of professional sound levels meters and noise dosimeters into a ... It is important to differentiate between noise level and time-weighted average noise exposure. While noise levels describe the ... Noise and Hearing Loss Preventionplus icon * Reducing Noise Exposureplus icon *Guidance and Regulations ... Up-to-date informational screens on what noises are considered hazardous, how to conduct a noise measurement, how to properly ...
Noise on Bandcamp. From dark ambient to drone music, if it's harsh and atonal, you'll find it here. ... Fargos Noise Scene Glows With Energy and Boundless Experimentalism You might not expect a noise scene in a relatively isolated ...
It bases on the document entitled "Community noise" that was prepared for the World Health Organization and published in 1995 ... 1999)‏. Guidelines for community noise. World Health Organization. ...
Electromagnetic Noise in Robena No. 4 Coal Mine. *Electromagnetic Theory of Techniques for the Non-destructive Testing of Wire ... One technique measures noise over the entire electromagnetic spectrum of interest for brief time periods. It is recorded using ... Mining Publication: Electromagnetic Noise in Grace Mine. Keywords: Electrical measures Nonionizing radiation ... Diesel-powered haulage equipment is used in this mine, and the electromagnetic noise environment it creates was measured to see ...
So even when your residence is very far from a road with high traffic, where noise levels are low, but you still have high air ... Whether proximity to traffic noise was associated with atherosclerosis as seen on TAC. ... and also traffic noise and atherosclerosis burden," he said. "But until now, one wasnt sure what parameters had the main ... a 5-dB increase in nighttime noise was associated with a 3.9% increase in TAC. ...
... available for iOS and Android. ... Gentle pure white noise to help your baby sleep better. Baby ... White Noise Baby includes everything you need to help your baby. relax and sleep better. Ambient sounds such as taking a car ...
Sounds that are too loud can damage sensitive structures of the inner ear and cause noise-induced hearing loss. Learn how to ... Noise Pollution (Environmental Protection Agency) * Noise-Induced Hearing Loss (National Institute on Deafness and Other ... Article: Dental drill noise reduction using a commercially-available earplug device. * Article: Building a City with Low Noise ... Article: Low-Frequency Noise: Experiences from a Low-Frequency Noise Perceiving Population. ...
Noise  WHO Task Group on Environmental Health Criteria for Noise; World Health Organization (‎World Health OrganizationWorld ... Noise : an occupational hazard and public nuisance / Alan Bell  Bell, Alan; World Health Organization (‎World Health ... Environmental noise guidelines for the European Region  World Health Organization. Regional Office for Europe (‎World Health ... Night noise guidelines for Europe  World Health Organization. Regional Office for Europe (‎World Health Organization. Regional ...
This paper presents the Noise development of air filter systems by using the Finite Element method as well as the experimental ... Noise Simulation and Validation of Air Filter Systems 2001-01-3801. This paper presents the Noise development of air filter ... Numerical and experimental tests are compared and a correlation with the practical noise problems in the air filter system was ... Citation: Silva, E. and Nunes, A., "Noise Simulation and Validation of Air Filter Systems," SAE Technical Paper 2001-01-3801, ...
Mining Project: Engineering Noise Controls for Haul Trucks and Load Haul Dumps (LHDs). Keywords: Hearing loss Noise Noise and ... Noise over-exposure can lead to noise-induced hearing loss (NIHL).. The purpose of this project was to develop, evaluate, and ... Less complicated noise controls were developed in-house by NIOSH.. Phase 3. This phase overlapped with Phase 2. As noise ... Noise controls were formally evaluated to determine their effectiveness in reducing noise exposures and/or inducing behavioral ...
... Books, articles, and a blog by the music critic of The New Yorker ...
Almost all firearms create noise that is over the 140-dB level. ... Exposure to noise greater than 140 dB can permanently damage ... Exposure to noise greater than 140 dB can permanently damage hearing. Almost all firearms create noise that is over the 140-dB ... Hearing Loss Due To Firearm Noise. People who use firearms are more likely to develop hearing loss than those who do not. ... Recreational Firearm Noise Exposure Michael Stewart, PhD, CCC-A, Professor of Audiology, Central Michigan University ...
... and covering such topics as cathode noise phenomena, signal amplification i... ... A symposium on noise, stressing mathematical theory and basic physical phenomena, ... A symposium on noise, stressing mathematical theory and basic physical phenomena, and covering such topics as cathode noise ... Noise in Electron Devices Edited by Louis D. Smullin and Hermann A. Haus ...
But music (or noise, depending on the age of the definer) has been used for far more sinister purposes too. In the second world ... And in Britain calls have been made this week to ban the use of the Mosquito, a high-pitched-noise generator that is used to ...
white noise random signal having equal intensity at different frequencies, giving it a constant power spectral density ... Simulating-Flying-Insects-Using-Dynamics-and-Data-Driven-Noise-Modeling-to-Generate-Diverse-pone.0155698.s029.ogv 9.9 s, 1,280 ... Simulating-Flying-Insects-Using-Dynamics-and-Data-Driven-Noise-Modeling-to-Generate-Diverse-pone.0155698.s021.ogv 29 s, 1,280 ... Simulating-Flying-Insects-Using-Dynamics-and-Data-Driven-Noise-Modeling-to-Generate-Diverse-pone.0155698.s022.ogv 35 s, 1,280 ...
... associated with noise. These lessons and activities encourage students and teachers to participate in citizen science projects ...
To understand the concepts of noise & vibration, approach method, analysis steps, design against noise & vibration, etc. ... Noise and Vibration. Training course on concept of noise and vibration, approach method, analysis steps and design against ... To understand the concepts of noise & vibration, approach method, analysis steps, design against noise & vibration, etc. ... To understand the concepts of noise & vibration, approach method, analysis steps, design against noise & vibration, etc. ...
All the dialogs are chock-full of background noise. I guess it was to add realism, but in fact, it takes away hugely from clear ... Seems like a good website, Id sign up today, except for one huge thing: All the dialogs are chock-full of background noise. I ... Background Noise! jgdta. January 17, 2013, 09:22 PM posted in General Discussion ...
Most of the noise arose from the exhaust on the pneumatic cylinders used to move the knives up and down. There was also a ... This silencer was located away from the work area to further reduce the noise impact and orientated downwards to allow oil, etc ...
A debonair brown bear, dressed in a flowing purple scarf, wonders what that strange thumping noise could be. Its his heart. PW ... Whats That Noise?. Michele LeMieux. Kids Can Press, $5.95 (32pp) ISBN 978-0-921103-69-1. ... The townsfolk of Hamelin, Germany, as presented in Lemieuxs ( Whats That Noise? ) mannered oil paintings, are a sharp- ... Technically unassailable and intermittently riotous, Lemieuxs (Whats That Noise?) watercolors only occasionally enhance the ...
Who knew fake noise could cost so much? Money, a player and two professional reputations took a hit in the aftermath of the ... "The rule states that at no point during the game can artificial crowd noise or amplified crowd noise be played in the stadium ... The Falcons were 3-5 in 2013 and 3-4 in 2014 at home while attempting to get a competitive advantage from the fake noise. ... Money, a player and two professional reputations took a hit in the aftermath of the Atlanta Falcons fake crowd noise scandal. ...
Noise Rating. The graph below depicts the cooling fans average noise over the PSUs operating range, with an ambient ... Performance, Noise and Efficiency * Page 1: Specifications and Part Analysis * Page 2: Load Regulation, Hold-Up Time, Inrush ... Enermax MaxRevo 1800W Power Supply Review: Big Wattage and Noise to Match. By Aris Mpitziopoulos ... Current page: Performance, Noise and Efficiency Prev Page Transient Response Tests, Ripple Measurements and EMC Pre-Compliance ...
Arts Express: Joyful Noise, a Conversation With Dolly Parton and Queen.... Movie Reviews ...
The Rebbe sees this as a discussion on the nature of noise, imperfection and superficiality. ... Noise Noise. I think we manage to seperate it and allow it to manifest in fragments.. Have you ever experienced noise in the ... in fact science teaches that the concept of pure noise or white noise is of this character). However as soon as the noise ... If it were not for Noise I think that if the noise of our struggle to become what G-d meant for us to be were not music to His ...
Cerberus Sentinel has established a reputation for its integrated approach to reduce noise and bridge common silos that often ...
  • According to the Centers for Disease Control and Prevention (CDC), about 40 million adults ages 20 to 69 have hearing loss from noise, but more than half of them report no on-the-job exposure to loud noise. (
  • We used temporal and signal-to-noise analysis to identify 2 health officials are now augmenting traditional disease sur- subsets of ICD-9 codes that most accurately represent ILI veillance, e.g., laboratory-based methods, with nontradi- trends, compared nationwide sentinel ILI surveillance data tional analysis of electronic medical records for more from the Centers for Disease Control and Prevention with timely monitoring of infectious disease patterns. (
  • Training course on concept of noise and vibration, approach method, analysis steps and design against noise and vibration. (
  • Showcase your organization's latest products or innovations as an exhibitor at the SAE Noise and Vibration Forum. (
  • Put your brand in front of key decision makers at the only industry event focused on noise, vibration, and harshness. (
  • Be a sponsor at the SAE Noise and Vibration Forum. (
  • Turcot A, Girard SA, Courteau M, Baril J, Larocque R. Noise-induced hearing loss and combined noise and vibration exposure. (
  • With its $100 million budget, White Noise is the most ambitious project to date for Baumbach, whose breakout film was The Squid and the Whale (2005) and whose last film was the critically acclaimed Marriage Story (2019). (
  • In 2019, Walker founded the Community Noise Lab at the School of Public Health, where she is able to reimagine how to deal with community noise issues through real-time sound monitoring, lab-based experiments, and community engagement activities, as well as the approach she takes to tackle these issues. (
  • The acoustic standard "ANSI/ASA S12.60-2019/Part 4" is a highly technical 34-page document that includes acoustical performance criteria and design requirements for gymnasia and other spaces, procedures for optional testing to determine conformance with the source background noise requirements and the reverberation time requirements of this standard, guidelines for controlling reverberation in gymnasia and other spaces, and guidelines for controlling background noise in gymnasia and other spaces. (
  • Park S, Johnson MD, Hong O. Analysis of Occupational Safety and Health Administration (OSHA) noise standard violations over 50 years: 1972 to 2019. (
  • The health impacts of environmental noise are a growing concern among both thegeneral public and policy-makers in Europe. (
  • Erica Walker, postdoctoral associate of environmental health, examines how noise impacts mental and physical health and shapes our cities and regulatory policies. (
  • The REL for noise is 85 decibels, using the A-weighting frequency response an 8-hour average, usually referred to as time-weighted average (TWA). (
  • They will be defined as any airplane or rotorcraft for which there is a published effective perceived noise in decibels (EPNdB) approach (AP) level of 91.0 or greater, based on a list the FAA has published . (
  • To develop, evaluate, and implement engineering controls to reduce noise over-exposures among haul truck and LHD operators. (
  • Field time-motion studies were conducted to quantify the expected reductions in noise exposures. (
  • Noise controls were formally evaluated to determine their effectiveness in reducing noise exposures and/or inducing behavioral changes in the work force. (
  • The NIOSH Sound Level Meter (SLM) app combines the best features of professional sound levels meters and noise dosimeters into a simple, easy-to-use package. (
  • Averages such as LAeq and TWA, Max and Peak Levels, Noise Dose and Projected Dose according to NIOSH and OSHA standards, and all three major weighting networks (A, C, and Z). (
  • NIOSH estimates that there are 22 million workers who are exposed to hazardous noise levels every year. (
  • NIOSH hearing loss researchers collaborated with an app developer, EA LAB, to create an iOS based sound level meter app that measures and characterizes occupational noise exposure similar to professional instruments. (
  • Previous NIOSH survey results indicated that more than 90% of underground metal equipment operators were over-exposed to noise according to the MSHA permissible exposure level. (
  • NIOSH developed a working relationship with equipment manufacturers to address the noise sources that are prominent contributors to operator noise doses. (
  • Less complicated noise controls were developed in-house by NIOSH. (
  • Noise controls developed in-house were documented and shared on the relevant NIOSH web pages, and MSHA was provided with the data. (
  • Electronic HPDs make softer sounds louder but shut off when there is a loud noise. (
  • This is because the valves may not close fast enough to protect hearing from loud noise. (
  • To identify how loud noise levels are in your environment, use a smartphone app. (
  • The town website includes a collection of documents related to aircraft noise. (
  • Issuance of an aircraft noise certificate or a reasoned response to refuse to provide a public service. (
  • Occupational noise exposure and hearing: a systematic review. (
  • In the past there have been many studies that already pointed out that there might be an association [between air pollution and heart disease] and also traffic noise and atherosclerosis burden," he said. (
  • So even when your residence is very far from a road with high traffic, where noise levels are low, but you still have high air pollution, your cardiac risk is elevated. (
  • Noise pollution or disruptive noise has a negative effect on human health, such as causing stress. (
  • By measuring noise pollution in real time, we contribute to solutions. (
  • Workers in industry can better protect themselves against noise pollution and thereby reduce health effects. (
  • Governments can prevent noise pollution by recognising the specific sources. (
  • This increases noise pollution, even though this is not visible on the noise map. (
  • Two different techniques were used to make measurements of the absolute value of electromagnetic noise in an operating hardrock mine, Grace Mine, located near Morgantown, Pennsylvania. (
  • Diesel-powered haulage equipment is used in this mine, and the electromagnetic noise environment it creates was measured to see how it differs from the environment created by electric-powered haulage equipment. (
  • A survey of electromagnetic noise reports was performed and a summary of the results are given. (
  • The app also reports the main metrics that are of importance for proper occupational noise measurements - mainly the run time (total time), the A-weighted Equivalent Sound Level (LAeq), the Maximum Level measured during the current run time, the C-weighted Peak Sound Pressure Level (LCpeak), the Time-Weighted Average (TWA) and Dose. (
  • During our studies, we realized that most of the apps on the market are oriented at the casual user and lack the accuracy and functionality necessary to conduct occupational and general purpose noise measurements. (
  • Rohde & Schwarz introduces improved performance for phase noise analysis and voltage-controlled oscillator (VCO) measurements. (
  • In addition to monitors for noise and radiation , real-time monitors are widely available for gas and vapor or aerosol measurements, and new technologies are emerging for other workplace hazards, such as force strength monitors for ergonomic assessments. (
  • Estimated prevalence of noise induced hearing threshold shifts among children 6 to 19 years of age: The third national health and nutritional examination survey. (
  • Prevalence of hearing loss among noise-exposed workers within the agriculture, forestry, fishing, and hunting sector, 2003-2012. (
  • Kids and teens are often exposed to noise levels that could permanently harm their hearing over time. (
  • The noise levels were reduced by 12dB. (
  • With the constant churn of freighter propellers, the percussive thump of oil and gas exploration and the underwater din of military testing, ocean noise levels have become unbearable for some sea mammals. (
  • Measuring noise levels at any time of day can help protect workers. (
  • In the study, the brain signals of older participants who had previously performed poorly on cognitive tasks returned to noise levels that looked more like those of young people. (
  • These flagship earbuds feature HearID active noise cancellation that automatically monitors outside ambient noise levels in real-time and in-ear pressure to tailor noise cancellation to match the situation. (
  • Overall results for the maximum, minimum and average noise levels are saved together with the ability to set two threshold cutoff levels and a single criterion level for all noise dose calculations. (
  • Black and Latino communities were overwhelmed with high levels of firework noise activity. (
  • Simultaneous hardware and software upgrades improve the market-leading performance even further, reducing noise levels and measurement times, and increasing accuracy. (
  • The new hardware basis common to both phase noise analyzers includes upgraded DC sources with reduced noise levels, further enhancing market-leading sensitivity. (
  • Up-to-date informational screens on what noises are considered hazardous, how to conduct a noise measurement, how to properly select a hearing protector, and guidelines for preventing hearing loss. (
  • If location services are enabled, the app can utilize the GPS feature to provide an exact geospatial location of the noise measurement. (
  • Casella USA's CEL-320 noise dosimeter covers three measurement ranges from 30 to 140 dB to ANSI type 2 specifications. (
  • With the newly introduced SCPI command recorder Rohde & Schwarz implements for the first time a function with phase noise measurement equipment to record sequences of manual settings. (
  • Let Windy help you fall asleep fast and mask annoying noises that keep you awake at night. (
  • An estimated 12.5% of children and adolescents aged 6-19 years (approximately 5.2 million) and 17% of adults aged 20-69 years (approximately 26 million) have suffered permanent damage to their hearing from excessive exposure to noise. (
  • People at every stage of life-from young children to older adults-can be at risk for noise-induced hearing loss. (
  • Mahboubi H, Zardouz S, Oliaei S, Pan D, Bazargan M, Djalilian HR. Noise-induced hearing threshold shift among US adults and implications for noise-induced hearing loss: National Health and Nutrition Examination Surveys. (
  • Vital Signs: Noise-Induced Hearing Loss Among Adults - United States 2011-2012. (
  • How do audio and visual characteristics of wind turbines contribute to noise annoyance? (
  • Melamed S, Rabinowitz S, Green MS. Noise exposure, noise annoyance, use of hearing protection devices and distress among blue-collar workers. (
  • A symposium on noise, stressing mathematical theory and basic physical phenomena, and covering such topics as cathode noise phenomena, signal amplification in microwave tubes, solid-state noise, and methods of designing low-noise tubes. (
  • This amplification may also boost otherwise unnoticeable instrument and background noises. (
  • Windy is a nature-based white noise app featuring a great variety of actual wind ambience recordings from nature in very high quality. (
  • Listening to loud music, especially on headphones, is a common cause of noise-induced hearing loss. (
  • To maximise noise cancelling performance, the WH-1000XM4 headphones incorporate two technologies: Personal Noise Cancelling Optimiser, designed specifically for you, and Atmospheric Pressure Optimising, designed specifically for air travel. (
  • Headphones Connect app to cancel noise while still allowing through essential sounds, like transport announcements, when you're listening on the move. (
  • Intelligent and intuitive, the WH-1000XM4 headphones offer further improvements to our advanced noise cancellation, exceptional sound quality, and smart listening that adjusts to your behavior and your location. (
  • The new Master & Dynamic MW75 over-the-ear wireless headphones with active noise cancellation were recently introduced. (
  • The Cleer Alpha Adaptive Active Noise Cancelling Headphones look fantastic and have an over-the-ear form factor, but are they good enough to stand out in a sea of headphone choices? (
  • By staying cognizant of academic noise, I was able to create sound level metrics that better described the environmental soundscape and what was actually going on. (
  • Baumbach hadn't read Don DeLillo's White Noise since it came out in 1985, when he was a teenager. (
  • Don DeLillo's 1985 novel "White Noise" has long been said to be "unfilmable. (
  • Earbuds that reduce or cancel noise making it easier for workers to focus on the task-at-hand. (
  • They can damage sensitive structures of the inner ear and cause noise-induced hearing loss. (
  • Firing guns in a place where sounds can reverberate, or bounce off walls and other structures, can make noises louder and increase the risk of hearing loss. (
  • Yet some of the music was created by "famous" people with the specific purpose of broadening the sound beds beneath the tracks (generally this is true with more traditional musical performances, not with noises). (
  • This sound pressure and sound power testing confirmed reduction in noise emissions. (
  • Town officials expect many of those flights will be diverted to nearby airports, though local officials contend the increase in noise elsewhere will be less than the local reduction in noise. (
  • This silencer was located away from the work area to further reduce the noise impact and orientated downwards to allow oil, etc to drip away naturally. (
  • Cerberus Sentinel has established a reputation for its integrated approach to reduce noise and bridge common silos that often limit the effectiveness of cybersecurity programs. (
  • A contract to reduce the noise generated by the scrubber fan system present on continuous mining machines. (
  • Occupational standards specify a maximum allowable daily noise dose, expressed in percentages. (
  • Early research focused on field studies to quantify noise dose accumulations and noise sources. (
  • Time-motion studies determined the causal relationship between job task and noise dose accumulation. (
  • Noise over-exposure can lead to noise-induced hearing loss (NIHL). (
  • Metidieri MM, Rodrigues HF, Filho FJ, Ferraz DP, Neto AF, Torres S. Noise-Induced Hearing Loss (NIHL): literature review with a focus on occupational medicine. (
  • The Doppler Labs Here One earbuds fix all that: They stream music via Bluetooth while acting like a literal filter for wanted and unwanted noise -- blocking out bad sounds (the copy machine, Frank in accounting's personal calls) and letting through the necessary ones (your business partner talking directly to you). (
  • The Soundcore Liberty 3 Pro True Wireless Noise Cancelling Earbuds are meant to provide immersive sound with touch controls, customizable HearID active noise cancelation that monitors outside ambient noise without putting too much pressure on your inner ears, and so much more. (
  • Dual noise sensor technology, featuring two microphones on each earcup, captures ambient noise and passes the data to the HD Noise Cancelling Processor QN1. (
  • From high-tech sonar to track a submarine or torpedo, to a cheap sensor that measures noise in a house. (
  • In addition, the app can serve as a research tool for scientists and occupational safety and health professionals to collect noise exposure data and promote better hearing health and prevention efforts. (
  • It is recorded using broadband analog magnetic tape, and the noise data is later transformed to give spectral plots. (
  • The town's new laws direct airport staff to maintain on the town website a current list of aircraft defined as noisy based on noise characteristics published by the FAA, or (if no such data is available from the FAA), the European Aviation Safety Agency. (
  • The town also has given operators the option of having their aircraft designated noisy or not based on noise data published in the aircraft manual. (
  • We are developing data models to extract even more information from noise. (
  • But the next question is, what other data is hidden in noise? (
  • Noise and uncertainty are usually the enemy of machine learning, noise in training data leads to uncertainty and inaccuracy in the predictions. (
  • Walker then gathered the data to develop a Fireworks Noise Risk Index, which used street-level data and attributes of vulnerability to pinpoint areas that the City should focus their resources in their effort to control firework activity. (
  • One such analysis can be compared to another by forming a PCEG confusion matrix showing the correspondence of every principal component from one data set (e.g. the original data) vs. every principal component of a noise added dataset. (
  • The OSHA PEL for noise is 90 dB(A) as an 8-hr TWA based on a 5-dB exchange rate. (
  • Silva, E. and Nunes, A., "Noise Simulation and Validation of Air Filter Systems," SAE Technical Paper 2001-01-3801, 2001, . (
  • The app was developed to help workers make informed decisions about their noise environment and promote better hearing health and prevention efforts. (
  • Noise is an important public health issue. (
  • These interactive, multi-disciplinary, STEM lessons and activities introduce students and teachers to the study of the New York City sound environment and the public health issues, both mental and physical, associated with noise. (
  • The NIDCD supports research on noise-induced hearing loss and other hearing disorders, and research on affordable, accessible hearing health care. (
  • To access the article in PDF format , you should be a subscriber to Noise and Health. (
  • Cut through the noise of your web traffic with Filters. (
  • Filters are a powerful feature that enable you to cut through the noise of your web traffic and surface the information you're really interested in. (
  • This slider (1 -8) controls the randomness of the noise: a high value lowers the randomness. (
  • This slider changes the lightness of the noise. (
  • Adjust the Gate slider so that noise disappears from silent passages but the instrument still plays normally elsewhere. (
  • But for Lalwani, that noise is the most telling signal of all. (
  • Noise comes from so many places - the room you're in, your guitar, your amp, pedals, other pieces of gear in the signal chain. (
  • Threshold adjusts how much level is required to open the noise gate and allow a signal to pass thru. (
  • Both the high end R&S FSWP phase noise analyzer and VCO tester plus signal and spectrum analyzer in one instrument, and the R&S FSPN dedicated phase noise analyzer and VCO tester, are now upgraded. (
  • The bedtime sound machine app with a pocket air conditioner noise inside! (
  • If your air conditioner is making an unusual noise and you aren't sure whether to call for service, the list below can help. (
  • Air conditioner noises are common, and while some are completely normal, others indicate problems that could be very dangerous. (
  • For the best possible results - and to promote safety - you should always call a professional if you hear a new or strange noise coming from your air conditioner. (
  • From left, Greta Gerwig as Babette, Raffey Cassidy as Denise, May Nivola as Steffie, Sam Nivola as Heinrich and Adam Driver as Jack in White Noise . (
  • This image released by Netflix shows Adam Driver, center, in a scene from "White Noise. (
  • In Baumbach's "White Noise," Adam Driver stars as Jack Gladney, a college professor with a teeming suburban family (Greta Gerwig co-stars as his wife, Babette). (
  • In addition, sound power level testing was conducted in the laboratory to evaluate the overall noise emission of the haul trucks and LHDs. (
  • The level of noise doesn't match the intensity/what's happening in the game. (
  • Almost all firearms create noise that is over the 140-dB level. (
  • We provide information on a personal level by creating real-time noise maps of the environment. (
  • Maximum Reverberation Time And Background Noise Level for Recreational Spaces (ft³). (
  • noise-added-0.01/noise-0.050-run-3-intersect.png indicates this is a noise added experiment at extremeThresh =0.01, at noise level 5%, and is experiment run number 3. (
  • A Quiet Noise Level is safe for hearing, great for conversation. (
  • There is no guarantee that the average dBA displayed is or will be the actual noise level in the future. (
  • Noise-induced hearing loss can result from a one-time exposure to a very loud sound, blast, or impulse, or from listening to loud sounds over an extended period. (
  • A small .22-caliber rifle can produce noise around 140 dB, while big-bore rifles and pistols can produce sound over 175 dB. (
  • How is Sound Masking Different Than White Noise? (
  • Sometimes after installing a new sound system, you may experience some bothersome engine/alternator noise, typically characterized by a whine that increases in pitch with engine speed. (
  • The easy way to enjoy less noise and even purer sound, with smart listening technology that automatically personalises your experience. (
  • Personal Noise Cancellation Optimiser analyses unique sonic characteristics caused by head size, glasses, and hair, then tailors sound to you. (
  • You will feel the same & sound the same - all you'll be wondering is where the noise went. (
  • Since 2016, the BSH has been reporting all impulsive sound events from German coastal waters and the German EEZ to the Regional Noise Register every year in order to fulfil the reporting obligations arising from the implementation of the MSRL . (
  • Download this FREE fan noise app, and you will have your bedtime fan sound with you wherever you are! (
  • Hearing loss from noise can happen instantly-when a loud sound happens very close to your ears-or it can occur gradually. (
  • The acoustics in many recreational facilities are subpar as a consequence of the poor construction design, the added noise from heating/cooling systems, poor-quality PA sound systems and a lack of sound-absorbing paneling. (
  • But music (or noise, depending on the age of the definer) has been used for far more sinister purposes too. (
  • Working together with a new Bluetooth® Audio SoC (System on Chip), it senses and adjusts to music and noise signals, as well as acoustic characteristics between the driver unit and ears, at over 700 times per second. (
  • We use noise recordings and events that show the link between cause and effect. (
  • Disturbed by unwanted noise in silent passages of your Real Instrument recordings? (
  • Over the next eight years, the duo expanded their lineup to include Don Joyce (all the other stuff that Hosler wasn't using to make noise), Chris Grigg (mainly drums, but also early computer software and even field recordings), and David Wills (invented instruments, and other noisemakers overlooked by Hosler and Joyce). (
  • Negativland merely had tapes rolling and then added pieces of the recordings to other material created by the group (mostly true for noises). (
  • The good news is that noise-induced hearing loss is preventable. (
  • Residents of Amherst, Massachusetts are set to vote on whether farmers are exempt from a local noise ordinance. (
  • 3. Notice of Noise to Residents and Businesses - delivery of a written notice to neighbouring properties of the noise event. (
  • The applicant is required to complete the Notice of Noise to Residents & Businesses form, and hand deliver the notice to properties within thirty (30) meters of the construction site/noise event. (
  • The other technique records noise amplitudes at several discrete frequencies for a sufficient amount of time to provide amplitude probability distributions. (
  • An additive interaction at high frequencies (mostly at 8000 Hz) between smoking and noise appeared after age 40 years. (
  • At age 21-39 years, neither smoking nor environmental noise had a significant adverse effect on hearing capacity at low frequencies. (
  • The town board also approved an extended daily curfew for aircraft deemed noisy (with a list of such aircraft to be compiled based on published noise characteristics that will include various helicopter and business jet models) from 8 p.m. to 9 a.m., and limited the operations of noisy aircraft to one takeoff and landing per calendar week from May 1 to Sept. 30. (
  • Cons: Its not as loud as a large noise maker, so in noisy environments, its a little under-powered. (
  • The noise ordinance exemption is expected to sail through the October thirtieth town meeting. (
  • 1. Noise Exemption - a plan for general onsite noise mitigation methods, and the foundation for the approval of future noise events. (
  • How do I know if I need a Construction Noise Exemption? (
  • Construction noise within the prohibited hours requires a construction noise exemption. (
  • How do I apply for a Construction Noise Exemption? (
  • A Construction Noise Exemption Application must be submitted in advance of anticipated construction and will be evaluated by the Municipality in coordination with the building permit review process. (
  • Exemption applications submitted after the commencement of construction may be considered, however, to accommodate the approval process and meet the notification requirements for a noise event, applications should be submitted as early as possible. (
  • Once the noise exemption has been approved, and a planned noise event date has been identified, a Noise Event Request form shall be submitted to the Municipality a minimum of five (5) business days prior to the noise event. (
  • If you have a complaint regarding construction noise that is within the prohibited hours outlined in the N-200 By-law , please visit the Approved Construction Noise Exemption webpage for site-specific information and/or to verify if the construction site has an exemption. (
  • Background Noise! (
  • Seems like a good website, I'd sign up today, except for one huge thing: All the dialogs are chock-full of background noise. (
  • Convenient noise-cancelling microphone reduces background noise. (
  • Flexible mic can be positioned for better voice capture and background noise reduction. (
  • The table displays different activity room sizes, limits for reverberation (echo), background noise (e.g. (
  • And in Britain calls have been made this week to ban the use of the Mosquito, a high-pitched-noise generator that is used to disperse groups of unruly teenagers from congregating points such as shopping centres and housing estates. (
  • Nashville, TN (July 11, 2015) -- Responding to the needs of pedalboard users and players whose high gain effects create difficult to control hum and noise, EHX has developed The Silencer, a sophisticated noise gate that can tame a single pedal or an entire effects loop. (
  • Negativland began in Northern California in 1979 while members Richard Lyons (singing, lyrics, voice) and Mark Hosler (just about anything else, musical and non-musical, that makes noise) were still in high school. (
  • This noise indicates high pressure in your condenser which is causing the squeal or hiss. (
  • Through the Community Noise Lab, Walker also bridges two of her research interests: environmental noise and academic noise, which she defines as "asking the wrong questions, ignoring the right places, and not seeing the larger picture. (
  • Effect of smoking and environmental noise on hearing impairment was investigated in 440 people aged 21-50 years living in Beirut. (
  • Raising awareness about noise-induced hearing loss from all sources is the focus of National Protect Your Hearing Month, which is observed each October by the National Institute on Deafness and Other Communication Disorders (NIDCD) and other organizations. (
  • Escape From Noise is a rough concept album which documents the sources of the noises that we'd all like to escape from, not the actual ways to make the escape. (
  • The Revv G8 Noise Gate is the new, simple, zero-compromise, solution to taking control of your rig. (
  • That's why we had to build a flexible noise gate to keep your entire rig quiet with zero downside. (
  • No problem-meet GarageBand's noise gate. (
  • Flippable Noise Gate is a general purpose noise/fx gate with attack-hold-decay controls, sidechaining, hysteresis, key gain, and most importantly, a FLIP button that mimics the one in Ableton's Gate device. (
  • The instrument inside Flippable Noise Gate is a tweaked version of Paul Whiting's 2009 Noise Gate. (
  • Hi, When harmonic balance analysis if performed in ADS with a noise controller, the phase and amplitude noise is found by plotting .pnmx and .anmx. (
  • The work involved the study of sub-system target allocation, test and simulation integration, modeling simplification, influence of air filter element on the noise, acoustic modal analysis and frequency response at the air filter inlet. (
  • A survey of the literature on extremely low-frequency and very low- frequency atmospheric noise was made. (
  • Whether traffic noise had any influence on TAC. (
  • Whether proximity to traffic noise was associated with atherosclerosis as seen on TAC. (
  • Analysis on Risk Factors of Depressive Symptoms in Occupational Noise-induced Hearing Loss Patients: A Cross-sectional Study. (
  • This type of hearing loss, termed "noise-induced hearing loss," is usually caused by exposure to excessively loud sounds and cannot be medically or surgically corrected. (
  • While some HPDs do limit what a person can hear, there are many products that allow shooters to hear softer sounds while still protecting them from loud sounds like firearm noise. (
  • Expanding on the Excess, Old Blood Noise continues their journey to revive and expand sought-out pedal sounds of the 80s. (
  • Get a natural sleep aid & relax with white noise AC fan sounds. (
  • Get a better sleep with Bedtime Fan Noise - White Noise Sounds! (
  • Noise is the primary example of a workplace hazard that is monitored by direct-reading instruments, with the regulation governing the allowable exposure also specifying the operating characteristics for the monitors Advancements in the technology for monitoring the range of workplace hazards have led to increased usage of real-time monitoring either as a supplement to or a replacement for conventional workplace sampling. (