On 2017-10-11 20:27, Tanu Kaskinen wrote: > On Tue, 2017-10-10 at 12:02 +0530, namittal at codeaurora.org wrote: >> > So if you previously used >> > >> > amixer cset name='SLIMBUS_0_RX Audio Mixer MultiMedia1' '1' >> > >> > with PulseAudio you have to use >> > >> > amixer -c0 cset name='SLIMBUS_0_RX Audio Mixer MultiMedia1' '1' >> > >> > The -c0 option tells amixer to use the hardware mixer of card 0 instead >> > of the mixer of the "default" device. The "default" device is >> > implemented by the pulse plugin, and you can't use that to control the >> > hardware mixer. >> >> yes, this works and i am able to use this >> aplay -D hw:0,0 /data/8khz_mono.wav >> >> but i also want to be able to use pulseaudio >> >> paplay and pulsesink to play audio which still doen't work. > > Does "pactl list cards" still print nothing after you've set all the > mixer settings and restarted pulseaudio? > > I don't know what could be the problem if aplay can open hw:0,0 but > pulseaudio can't. Apparently there's some difference in how they > configure the device. You could study the details and differences of > the device opening and configuration sequences of the two programs. Thanks for all your help. you are right after setting amixer setting and then running pulseaudio does detect alsa sound card and hence able to play audio. thanks again.
