On Mon, 15 Nov 2010, Charles Henry wrote:
However, there's an interesting and useful approximation given by the hilbert~.pd patch (provided in the extra directory perhaps?). It uses two all-pass biquad filters that are ~90 degrees out of phase with each other to approximate the hilbert transform.
Unfortunately, there are two different things called Hilbert Transform, and the one with the two biquads doesn't approximate Hilbert's decomposition, they approximate the other thing called after Hilbert.
(is that right ?) _______________________________________________________________________ | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC
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