Microsound

Microsound includes all sounds on the time scale shorter than musical notes, the sound object time scale, and longer than the sample time scale. Specifically this is shorter than than one tenth of a second and longer than 10 milliseconds, including the audio frequency range (20 Hz to 20 kHz) and the infrasonic frequency range (below 20 Hz, rhythm). (Roads 2001, p.vii and 20-28)

These sounds include transient audio phenomena and are known in acoustics and signal processing by various names including sound particles, acoustic quantum, sonal atom, grain, glisson, grainlet, trainlet, microarc, wavelet, chirplet, FOF, time-frequency atom, pulsar, impulse, toneburst, tone pip, acoustic pixel, and others. In the frequency domain they may be named kernel, logon, and frame, among others. (ibid)

Physicist Dennis Gabor is an important pioneer in microsound. (ibid) Micromontage is musical montage with microsound.

See also: granular synthesis and micromontage.

Source

• Roads, Curtis (2001). Microsound. Cambridge: MIT Press. ISBN 0262182157.

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