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Phase Delay

The value about which the impulse response is symmetric is the phase delay of the filter.

\fbox{\parbox{5.5in}{A \lq\lq simple waveform delay'' means the waveform will not change with a change in frequency.}}

Linear phase is desirable because it delays all frequencies by the same number of samples and that means no phase distortion.

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``Music 206: Delay and Digital Filters I'' by Tamara Smyth, Computing Science, Simon Fraser University.
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Copyright © 2020-01-14 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>