[PD] feedback detection

Exegene exegene at devo.com
Mon Jul 31 19:17:40 CEST 2006


You could "cheat", taking an engineer's approach: plot tendency toward 
runaway feedback against some appropriately chosen paramater values, use 
the data to aid in constructing a feedback gain modulator. If the system 
is predicted to run away for certain parameter values, maybe nudge the 
gain down a bit. A properly chosen modulation scheme may even allow you an 
additional quirky point of control over the "personality" of the 
installation at any given moment. Depending on just what intelligence
extraction is going on as regards the fed in data, it might get hairy 
automating gain control, 
however, and even if an appropriate control scheme can be found it may be 
unstable, even to the point of unusability in performance. Babysitting may 
of course be required. 

Or maybe store known good samples for comparison with data under feedback, 
choose where enough tonal/... difference is enough?

hope this helps


-- 
Dear Patron Saint,
your lips are lopsided
www.devo.com/exegene




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