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Post by ChrisK on Apr 26, 2009 21:03:43 GMT -5
Yep, although I was referring to the phase shift that occurs in a filter at the resonant frequency as seen in Pickup Coil Response Tuning and indicated by those pesky dotted lines. en.wikipedia.org/wiki/All-pass_filterThe inverse (if you will) of this type is the Bessel filter due to its maximally flat group delay. It requires more stages than virtually any other filter for the same slope, but it is the kindest to the signal phase as a function of frequency. en.wikipedia.org/wiki/Bessel_filter
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