I've got a project that I've put on the shelf and haven't finished. I wanted to figure out how to create stable acoustic feedback, and I can show that a single long-length (on the order of RT60 room reverberation time) FIR filter can be used to equalize the acoustic feedback path. I never succeeded in all my experiments except to create really loud noises that I thought were going to destroy my loudspeakers, burn down my house, etc... Perhaps other people have been more successful with acoustic feedback.
The primary problem I found was that simple inverse and regularized least-squares methods would produce "ringing" and non-compact solutions that would result in instability when applied. I don't have time to share all the math tonight, but I will help with the "discussion" part of all this :) Chuck On Tue, Sep 8, 2009 at 9:25 PM, Jerome Covington<[email protected]> wrote: > I'm interested to know who's been working with feedback, and if anyone > has any patches they've developed, or that others have developed that > they think is exemplary. > > -- > Regards, > Jerome Covington > . . . . : . . . . : > "define audio development" > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > _______________________________________________ Pd-dev mailing list [email protected] http://lists.puredata.info/listinfo/pd-dev
