Heart SoundsHeart AuscultationPhonocardiographyHeart MurmursSoundAortic ValveMitral ValveKinetocardiographyHeartStethoscopesHeart Valve DiseasesAortic Valve StenosisMitral Valve InsufficiencyAortic Valve InsufficiencyMitral Valve StenosisSound LocalizationHeart RatePulmonary ValveTricuspid ValveCineangiographySignal Processing, Computer-AssistedHeart DiseasesHeart FailureMitral Valve ProlapseSound Spectrography