On 03-Feb-15 00:21, Stefan Sullivan wrote:
... In fact, any linearly interpolated biquad coefficients between stable filters results in a stable filter, including with nonzero initial conditions ( http://dsp.stackexchange.com/a/11267/5321). The trick is that the bounds may be different with nonzero initial conditions than with zero initial conditions.
I took a glance at the proof and it doesn't look very convincing. If there's interest, we could further discuss the details.
Regards, Vadim -- Vadim Zavalishin Reaktor Application Architect Native Instruments GmbH +49-30-611035-0 www.native-instruments.com -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http://music.columbia.edu/cmc/music-dsp http://music.columbia.edu/mailman/listinfo/music-dsp
