| 词条 | Phase distortion |
| 释义 |
In signal processing, phase distortion or phase-frequency distortion is distortion, that is, change in the shape of the waveform, that occurs when (a) a filter's phase response is not linear over the frequency range of interest, that is, the phase shift introduced by a circuit or device is not directly proportional to frequency, or (b) the zero-frequency intercept of the phase-frequency characteristic is not 0 or an integral multiple of 2π radians. Audibility of phase distortionGrossly changed phase relationships, without changing amplitudes, can be audible but the degree of audibility of the type of phase shifts expected from typical sound systems remains debated.[1][2][3] See also
References1. ^{{cite web|author1=Arthur C Ludwig Sr.|title=Audibility of Phase Distortion|url=http://www.silcom.com/~aludwig/Phase_audibility.htm|accessdate=15 February 2016|date=1997}} {{FS1037C MS188}}{{physics-stub}}{{Sound-tech-stub}}2. ^{{cite journal|author1=Lipshitz, Stanley P. |author2=Pocock, Mark |author3=Vanderkooy, John |title=On the Audibility of Midrange Phase Distortion in Audio Systems|journal=Journal of the Audio Engineering Society|date=1 September 1982|volume=30|issue=9|pages=580–595|location=http://www.aes.org/e-lib/browse.cfm?elib=3824}} 3. ^{{cite web|title=Human Hearing - Phase Distortion Audibility|url=http://www.audioholics.com/room-acoustics/human-hearing-phase-distortion-audibility-part-2}} 2 : Electrical parameters|Audio amplifier specifications |
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