3 Dec
2010
3 Dec
'10
3:33 a.m.
Greetings,
There is only a single mic on this netbook. However, the alsa device shows up as stereo, and the right channel carries an inverted copy of the left channel.
http://git.alsa-project.org/?p=alsa-lib.git;a=commit;h=59c774ed5ee00e9623a20...
So when the two channels are summed to make a mono (e.g. for telephony, or playback on mono internal speaker) it appears that there is no signal.
Is there a way to "cure" this problem in the driver? I can think of
- Force internal mic capture to be mono (left only)
- Copy left to right capture
- Invert right capture
but don't know how easy any are to implement.