Transient (acoustics)

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In acoustics and audio, a transient is a high amplitude, short-duration sound at the beginning of a waveform that occurs in phenomena such as musical sounds, noises or speech.[1][2] It can sometimes contain a high degree of non-periodic components and a higher magnitude of high frequencies than the harmonic content of that sound.[citation needed] Transients do not necessarily directly depend on the frequency of the tone they initiate.[citation needed]

Transients are more difficult to encode with many audio compression algorithms, causing pre-echo.[citation needed]

Sonar[edit]

The term transient is used by military sonar operators to describe unexpected sounds emanating from another vessel such as operating machinery, a metal hatch being slammed, or the flooding and pressurization of torpedo or vertical launch tubes.[citation needed]

See also[edit]

References[edit]

  1. ^ Crocker, Malcolm J. (ed); Stepanishen, Peter (1998). Handbook of Acoustics. NY: John Wiley and Sons, Inc. p. 119. ISBN 0-471-25293-X. 
  2. ^ Gibson, William A. (2007). The Ultimate Live Sound Operator's Handbook. NY: Hal Leonard Books. p. 49. ISBN 978-1-4234-1971-6.