Feeback tends toward periodicity at 1/t for a delay of t so you could do an autocorrelation (expensive - does Pd have an object to help with that?) of te feedback signal to look for it. Since you know the frequency in advance a simple bp filter is more effective. Not sure what you mean by "dominant" part. If gain is greater than unity then it will eventually be, but if you think of a Karplus=Strong it is by definition once the excitory signal has vanished. Am I understanding your question(?) if I say the best way is to simply monitor the amplitude , because if G>1 the amplitude will *always* keep growing.
On Sun, 30 Jul 2006 19:07:12 -0400 Hans-Christoph Steiner hans@eds.org wrote:
Has anyone done anything with trying to detect feedback in a signal?
I am not looking so much for feedback suppression techniques, but
rather detection techniques. I am working on a system that has a
slow feedback loop. I want to detect when feedback is the dominant
part of the signal, and make the system respond in novel ways..hc
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