Noun
English Wikipedia has an article on:psychoacousticsWikipedia
psychoacoustics (uncountable)
The scientific study of all the psychological interactions between humans and the world of sound; includes the perception and production of speech.
MPEG-1 Audio utilizes psychoacoustics to significantly reduce the data rate required by an audio stream. Source: Internet
These algorithms almost all rely on psychoacoustics to eliminate less audible or meaningful sounds, thereby reducing the space required to store or transmit them. Source: Internet
The techniques employed in speech coding are similar to those used in audio data compression and audio coding where knowledge in psychoacoustics is used to transmit only data that is relevant to the human auditory system. Source: Internet