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In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain. [1]
Musical tones produced by the human voice and all acoustical musical instruments incorporate noises in varying degrees. Most consonants in human speech (e.g., the sounds of f, v, s, z, both voiced and unvoiced th, Scottish and German ch) are characterised by distinctive noises, and even vowels are not entirely noise free.
Stereo sound has been in common use since the 1970s in entertainment media such as broadcast radio, recorded music, television, video cameras, cinema, computer audio, and internet. Etymology [ edit ]
Natural soundscapes include natural but non-biological "geophonic" sounds (such as the water of the ocean) and the "biophonic" sounds of animals (such as bird calls). According to academic Bernie Krause, soundscape ecology serves as a lens into other fields including medicine, music, dance, philosophy, environmental studies, etc. (the soundscape).
A "register" of the human voice, such as whistle register, is a series of tones of like quality originating through operation of the larynx.The constituent tones result from similar patterns of vibration in the vocal folds, which can generate several different such patterns, each resulting in characteristic sounds within a particular range of pitches. [1]
Sheets of sound was a term coined in 1958 by DownBeat magazine jazz critic Ira Gitler to describe the new, unique improvisational style of John Coltrane. [ 1 ] [ 2 ] Gitler first used the term on the liner notes for Soultrane (1958).
Biochemist Martin Gruebele regularly dons a pair of headphones in his lab at the University of Illinois. But instead of music, he listens to a cacophony of clinking, jarring noises — as if a ...
In modern parlance, if a string sounds the note C when plucked, a string twice as long will sound a C an octave lower. In one system of musical tuning , the tones in between are then given by 16:9 for D, 8:5 for E, 3:2 for F, 4:3 for G, 6:5 for A, and 16:15 for B, in ascending order.
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