Alsa Primary Sound Card Only Outputting Left Ear

Question

When setting up my .asoundrc so my defaults were correct with my mic. Alsa got to thinking that my soundcard is only mono(or my sound card broke). Even with the .asoundrc asking for 2 channels it still only outputs the left ear. The sound was working perfectly fine before this and now refuses to go back even with the same .asoundrc as before.
I have tested and made sure that the cable or my mixer is not at fault. My other sound card in my computer still functions in stereo.
.asoundrc
pcm.!default {
type plug
slave.pcm "dmixed"
pcm.dsp {
type plug
slave.pcm "dmixed"
pcm.dmixed {
type dmix
ipc_key 1024
slave {
pcm {
type hw
card CA0106
rate 44100
period_time 0
period_size 1024
buffer_size 8192
channels 2
bindings {
0 0
1 1
ctl.dmixed {
type hw
card CA0106
capture.pcm {
pcm {
type hw
card CA0106
Last edited by Ghosy (2013-10-06 16:34:01)

Answer 1

What model of CA0106 are you using? According to http://alsa.opensrc.org/Ca0106 there are 3 different models. You can look up your default alsa configuration devices with:
less /usr/share/alsa/cards/CA0106.conf
There may be some differences with default bindings with different models. Check if there are any hardware switches/paths configured:
alsamixer
and hit F5.
Your .asoundrc does not seem to be ok. Try something like this:
pcm.!default { type plug;
slave.pcm "ca0106"; }
pcm.ca0106 { type asym;
playback.pcm "dmix";
capture.pcm "cap"; }
pcm.dmix { type dmix;
ipc_key 1024;
slave { pcm { type hw;
card CA0106;
rate 44100;
period_time 0;
period_size 1024;
buffer_size 8192;
channels 2; } }
pcm.cap { type hw;
card CA0106;
#Change to correct device or delete next line
device 0; }
ctl.!default { type hw;
card CA0106; }
I left bindings out, so alsa can default, but if nothing happens, try:
pcm.dmix { type dmix;
ipc_key 1024;
slave { pcm { type hw;
card CA0106;
rate 44100;
period_time 0;
period_size 1024;
buffer_size 8192;
channels 2; }
bindings { 0 0;
0 1; } }
instead.
You can also set rate to 192000 if your model supports it, the type plug plugin takes care of making any stream compatible to it.
I am a bit rusty on alsa configuration, since I have done mine a very long time ago, you may want to check it for some hints http://pastebin.com/sG3kuPLu.
Edit: The formatting may not display closing brackets }, but they are there. Copy the whole code.
Last edited by emeres (2013-10-08 03:12:08)