Or convolution?
Hi Zax, did you look into Miller's "timre stamp" example file? Perhaps this is also useful for you! best, P
eran@mx.kein.org wrote: Hello list, After a few years of maxing I migrated back to PD about a year and a half ago and haven’t looked back. Now I ran into a stumbling block and I figured I turn to you for help:
I’m looking for a way to impose a harmonic spectrum on a non-harmonic signal. I tried cross-synthesis with a harmonic signal, which is ok, but what I’m actually trying to do is to “tune” a field recording, in a way, so it can have harmonic relations to a live instrument.
I played with the pvtune~ object from fftease which is nice, but the results end up sounding a bit autotune-ish. And I also tried driving a few vcf~ filters with frequencies running from fiddle~/sigmund~ but the fundamental from these objects is too erratic and it sounds very unnatural.
Wishart describes in his book a technique he calls spectral focusing, which relies on lpc. He says that lpc can be set to generate a filter bank which is distributed evenly with respect to pitch, but I’m not sure I understand what he means and how it can be done in PD. lpc seems to output a set of amplitudes for the coefficients. Can I set the filters to frequencies of my choice?
Any help with this would be greatly appreciated, Zax
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