At Tue, 29 Aug 2006 15:32:10 +0100, Daniel James wrote: > > Hi Takashi, > > > OSS does software sample rate conversion as default. > > Right, that figures. > > > Check your /proc/asound/card0/codec97#0/ac97#0-0 file, whether it > > contains "VRA" in Extended ID section. If not, it's 48k-only codec. > > Indeed it does not - thanks for the clue :-) > > I have put an extra soundcard in one of the test machines showing the > problem. The new card has the ice1712 chipset, and this changes sample > rate perfectly. > > Is there any change that has been made to ALSA recently, which would > mean that a 48k-only chipset no longer does sample rate conversion in > software by default? If not, could this be something broken in Debian's > configuration of ALSA? If you start JACK, usually it prefers "hw" PCM, which means the direct access to the hardware without resampling, up/downmix, and format conversion (also without soft-mixing). The "default" PCM is with everything, i.e. dmix, and plug layer. So, I guess this is intentional behavior. Takashi ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
