Various definitions and measures of phase distortion are reviewed beginning with first principles. Numerous representative examples are included indicating quantitative amounts of phase distortion produced by microphones, loudspeakers, coaxial cables, anti-alias filters and magnetic recording. The effects of phase distortion on time-domain performance are discussed. A frequency-dependent tolerance on group delay distortion is developed based on seven different perceptual studies and compared with some representative measurements. New and complementary experiments are proposed to assess further the perceptual significance of phase distortion in music reproduction. Methods of phase equalization and phase equalizer design are presented. A new time-frequency display, showing both the location of a signal in time and its frequency spread, is introduced which provides a more unified view of time-domain and frequency-domain interrelationships.
https://www.aes.org/e-lib/browse.cfm?elib=11907
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!
