Hi
I should better know how zfilter2 works... is it Michael Casey on this
list?
I´d like to know how pole warping and pole shearing affect an allpass
filter... I just think... could it be possible to implement a subsampled

allpass with a variable delay time with zfilter2? I´m looking for an
elegant way to implement phasers and flangers.
Thancks in advance!

Josep M Comajuncosas