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. If the signal is an intermediate one in a production process (but then why would you use 16-bit), the rectangular one is recommended. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
