Page 195 - Master Handbook of Acoustics
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FIGURE 10-7 To estimate the perceptual significance of comb filters, three delay examples are
compared to the auditory critical band effective at a frequency of 1,000 Hz. (A) Delay of 0.5 msec.
(B) Delay of 8 msec. (C) Delay of 40 msec. A linear frequency scale is used.
Comb Filters in Multichannel Playback
In multichannel playback, for example, in standard stereo playback, the input signals to each ear come
from two loudspeakers. These signals are displaced in time with respect to each other because of the
loudspeaker spacing; the result is the generation of comb filters. Blauert indicated that comb-filter
distortion is not generally audible. As the perception of timbre is formed, the auditory system
