Acoustics Research InstituteFront vowel: A front vowel is any in a class of vowel sound used in some spoken languages. The defining characteristic of a front vowel is that the tongue is positioned as far in front as possible in the mouth without creating a constriction that would make it a consonant.Janwillem van den Berg: Janwillem van den Berg (20 November 1920 in Akkrum – 18 October 1985 in Akkrum) was a Dutch speech scientist and medical physicist who played a major role in establishing the myoelastic-aerodynamic theoryTitze, I. R.Dysprosody: Dysprosody, which may manifest as pseudo-foreign accent syndrome, refers to a disorder in which one or more of the prosodic functions are either compromised or eliminated completely.Sound changeVocal folds: The vocal folds, also known commonly as vocal cords or voice reeds, are composed of twin infoldings of mucous membrane stretched horizontally, from back to front, across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.Song control system: A song system, also known as a song control system (SCS), is a series of discrete brain nuclei involved in the production and learning of song in songbirds. It was first observed by Fernando Nottebohm in 1976 in a paper titled "Central control of song in the canary, Serinus canarius", published in the Journal of Comparative Neurology.Psychoacoustics: Psychoacoustics is the scientific study of sound perception. More specifically, it is the branch of science studying the psychological and physiological responses associated with sound (including speech and music).Contax N Digital: The Contax N Digital was a six-megapixel digital SLR camera produced by Contax in Japan. The camera was announced in late 2000, and began to be sold in spring 2002, after several delays.Voice changer: The term voice changer (also known as voice enhancer) refers to a system of altering a person's voice to either make them sound like someone else or to disguise their voice.IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society: The IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society (UFFC) is a professional society of the IEEE.List of noise topics: This is a list of noise topics.Cue stick: A cue stick (or simply cue, more specifically pool cue, snooker cue, or billiards cue), is an item of sporting equipment essential to the games of pool, snooker and carom billiards. It is used to strike a ball, usually the .Temporal analysis of products: Temporal Analysis of Products (TAP), (TAP-2), (TAP-3) is an experimental technique for studying