Hauke Westemeier wrote: > aplay -v -D plug:stereoonly /usr/share/sounds/alsa/Front_Center.wav > Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono > Plug PCM: Route conversion PCM (sformat=S16_LE) > Transformation table: > 0 <- 0 > 1 <- 0 This is the automatic mono->stereo conversion. > Its setup is: > ... > channels : 1 > ... > Slave: Hardware PCM card 0 'bcm2835 ALSA' device 0 subdevice 0 > Its setup is: > ... > channels : 2 > ... > If I set it for the external sound card by changing "card 0" to "card 1" > aplay -v -D plug:stereoonly /usr/share/sounds/alsa/Front_Center.wav > still gives the error > > Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono > aplay: set_params:1297: Unable to install hw params: This might be a problem unrelated to the number of channels. Are there any error messages in the system log? Where can I find the source code of the driver? 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@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
