[PD] Phase and impulse response measurement

[Martin Schied]

> Hi everyone,
>
> i wondered if someone made a patch measuring the PHASE of a reference 
> signal compared to measured signal
>

Hi,

you could one of the cross-correlation externals to measure the time 
delay between 2 signals. (there's one external in iem_tab from 
pd-extended I remember and there are possibly more). If that's useful 
for you I created a similar, fft based patch using vanilla objects I can 
post here.

However correlation doesn't directly measure phase differences of 
separate frequency bands but the delay of the signal over all frequencies.

Martin
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