On Sat, May 08, 2010 at 03:23:11PM +0400, Andrew Gaydenko wrote: Zita-resampler uses the same 'sinc' algo as SRC, and the resample application configures for the best quality which corresponds to a 192 tap FIR. The differences are * zita-resampler precomputes all filter coefficients and does not have to interpolate them while processing. This makes it faster, in particular for multichannel since (at least the last time I looked) SRC repeats this interpolation for each channel. * The SRC filter goes for full attenuation at FS/2 (FS is the lower of the two sample rates) while zita-resampler has -60dB at that point. This is a deliberate choice. Zita-resampler will reach full attenuation of aliases at all frequencies where it matters, at least when used at the normal sample rates (>= 44100). It should not be used to resample to e.g. 32 kHz or lower. Listening tests with 'expert' users have shown that none of them have been able to hear the difference between the original, SRC, and zita-resampler even at a *lower* quality setting. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte !