 |
This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2008) |
In acoustics and audio, a transient is a short-duration signal that represents a non-harmonic attack phase of a musical sound or spoken word. It contains a high degree of non-periodic components and a higher magnitude of high frequencies than the harmonic content of that sound. Transients do not directly depend on the frequency of the tone they initiate.
Transients are difficult to encode with many audio compression algorithms, causing pre-echo.
See also
In recording audio a transient is represented as the initial attack edge peak of short duration when displayed as a waveform.
Sonar
Transient is often used by sonar operators to enter large numbers of crit strings, referring to sudden, unnatural changes in the acoustic environment. This is usually caused by an unnaturally fast moving object. It is most often applied for military use, referring to 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.
 |
This physics-related article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
