Don Richard Posted April 23, 2008 Share Posted April 23, 2008 I am with you, DD. Mark has confirmed the phenomenon, but we still don't know WHY. It would effectly prove the point about 22khz being too low a cut off point for Redbook if you did this experiment with an amp that did not pass anything beyond 22khz and one that did and were able to clearly tell the difference. Sure would like to understand the why of it... The phase response of the steep filters used for anti-aliasing are probably the culprit. Frequency-dependent delays that are created by the filtering tend to smear time-related information that extends into the audible region. Don Honk if you love Horns Quote Link to comment Share on other sites More sharing options...
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