The Differential Time-Delay Distortion and Differential Phase-Shift Distortion as Measures of Phase Linearity

Leach J,WM. The Differential Time-Delay Distortion and Differential Phase-Shift Distortion as Measures of Phase Linearity. J Audio Eng Soc. 1989;37(9):709-715. Available from: https://aes.org/publications/elibrary-page/?id=6070

@article{Leach1989_6070,
  author = {Leach, Jr., W. Marshall},
  title = {{The Differential Time-Delay Distortion and Differential Phase-Shift Distortion as Measures of Phase Linearity}},
  journal = {Journal of the Audio Engineering Society},
  volume = {37},
  number = {9},
  pages = {709--715},
  year = {1989},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=6070}
}

TY  - JOUR
TI  - The Differential Time-Delay Distortion and Differential Phase-Shift Distortion as Measures of Phase Linearity
AU  - Leach, Jr., W. Marshall
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 37
IS  - 9
SP  - 709
EP  - 715
PY  - 1989
DA  - 1989/09/06
UR  - https://aes.org/publications/elibrary-page/?id=6070
PB  - Audio Engineering Society
LA  - en
AB  - The relationship between phase shift, phase delay, and group delay of a system are reviewed. The differential time-delay distortion and differential phase-shift distortion are defined. A rationale is presented for the use of these as indicators of phase linearity of audio amplifier circuits. The differential time-delay and phase-shift distortions are calculated for several low-pass and high-pass filter functions. The calculations are used to illustrate the use of the differential phase-shift distortion as a criterion for calculating minimum amplifier bandwidths for a specified phase linearity.
ER  -