Olivier Delhomme wrote: > Ok, if I tell arecord to use specifically the device "hw:0" or "hw:0,0" > the error message is : > arecord -D"hw:0,0" --channels=1 --format=S16_LE --rate=44100 > arecord: set_params:906: Channels count non available > > But if I tell arecord to use the "default" device (-D"default") it is Ok! > So there IS a difference. > > I'll use this settings in my project, but as I'm curious i'm willing to > know how can I do this automatic downmix using the "hw:0,0" device ?
"hw" goes directly to the hardware and thus is restricted to the capabilities of the sound chip. "plughw" (which is what "default" aliases to) adds a software layer the automatically converts sample formats. Regards, Clemens -- Clemens Ladisch [EMAIL PROTECTED] ------------------------------------------------------------------------- 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-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/alsa-user
