Hauke Westemeier wrote: > The differences to the values prompted in the error of > aplay /usr/share/sounds/alsa/Front_Right.wav > seem to be the number of channels and period_size and buffer_size. > If I just run speaker test with one channel (default) > speaker-test -t wav > I also get a similar error like aplay: > ... > Unable to set hw params for playback: Invalid argument > > So the problem seems to be the number of channels. I therefore tried > to also set it explicitly for aplay but > aplay --channels=2 /usr/share/sounds/alsa/Front_Right.wav > still didn't work and gave "CHANNELS: 1" in the error.
aplay always uses the actual format of the file. The plughw plugin (which is also used by the default device) automatically converts to a sample format that is (claimed to be) actually supported by the hardware. Try running this program: http://download.atmark-techno.com/misc/demos/usb-audio-a500-howto/hw_params.c Does it report one channel? Regards, Clemens ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
