On Fri, Apr 23, 2010 at 11:33:36PM +0200, Fons Adriaensen wrote: > On Fri, Apr 23, 2010 at 02:20:00PM -0700, Ken Restivo wrote: > > > On Fri, Apr 23, 2010 at 10:58:03PM +0200, Fons Adriaensen wrote: > > > On Fri, Apr 23, 2010 at 10:31:38PM +0200, Julien Claassen wrote: > > > > > > > I have Ecasound, sndfile-convert and sox. But from these three I > > > > deem sndfile-convert to be the best. but I seem to remember, that > > > > Fons Adriaensen recently released a tool/library to do the same > > > > task. I believe it is as good as or better than sndfile-convert. I > > > > seem to recall, that there were issues with finetuning dithering, > > > > that sndfile didn't offer. As I said, I'm not 100% syure about that. > > > > > > That is the 'resample' application, part of the source distribution > > > of zita-resampler. For 16-bit output it offers rectangular, > > > triangular or Lipschitz noise shaped dithering. > > > > > > > Thanks, I'm looking at the different dithering types here: > > > > http://www.kokkinizita.net/linuxaudio/dithering.html > > > > And wondering, which is the "best" of them to use? > > > > Looks to me like the rectangular creates the fewest harmonics. Am I reading this correctly? > > No. The only harmonics to be seen are in the first picture, > the one with *no* dithering. > > For final delivery (e.g. a CD) the noise-shaped one should > be the best, it will produce the least audible noise. This > doesn't matter is you have a constant high level, it does > for music with a wide dynamic range. > Cool. Is that the "Lipschitz error feedback filter" then? -ken _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
