At Mon, 15 Dec 2008 15:01:08 -0800 (PST), Bill Unruh wrote: > > On Tue, 16 Dec 2008, Sergei Steshenko wrote: > > > On Mon, 15 Dec 2008 23:40:11 +0200 > > Sergei Steshenko <steshenko_ser...@list.ru> wrote: > > > >> On Mon, 15 Dec 2008 23:17:11 +0200 > >> Sergei Steshenko <steshenko_ser...@list.ru> wrote: > >> > >>> On Mon, 15 Dec 2008 12:56:28 -0800 (PST) > >>> Bill Unruh <un...@physics.ubc.ca> wrote: > >>> > >>> > >>>> > >>>> What kind of resampling does ALSA do these days-- linear interpolation ( > >>>> which > >>>> is fast and does not have any delay, but introduces loads and loads of > >>>> distortion and noise) or what? > >>> > >>> > >>> You may choose. There is now sinc interpolator with low, medium and high > >>> quality. You need to instal a plugin - comes with ALSA. > > The problem I believe is that this has large latency. And this is NOT the > sample rate conversion that alsa uses by default (eg if it is fed a 44.1 file > when the card only does 48K. ) I thought the default was simple linear > interpolation but am not sure anymore.
When you install alsa-plugins, the pph rate converter plugin (taken from speex) is used as default silently. Takashi ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
