Sound (acoustics)
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This article is about the acoustic phenomenon. For other uses of the term Sound, please see Sound (disambiguation).
Sound is the range of frequencies that can be heard by a living organism, particularly by a human being.
Language
Sound is involved in human communication, e.g. in the perception and production of speech, as well as in non-linguistic utterances (such as cries or laughter). In linguistics, the physical mechanisms of speech are studied in the fields of acoustic, auditory and articulatory phonetics. The study of speech processing in language is a matter for disciplines including theoretical phonology and psycholinguistics.