#40: Alsa microphone is not working
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Reporter: iNPUTmice | Owner: vadim
Type: defect | Status: new
Priority: critical | Milestone: QuteCom 2.2-RC4
Component: misc | Version: 2.2-RC3
Resolution: | Keywords:
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Comment(by cavedon):
Mhm, there is some incomplete code in the mixer management:
libs/sound/src/linux/LinuxVolumeControl.cpp:
{{{
int LinuxVolumeControl::getLevel() {
int level;
// TODO: retrieve the sound card name from the AudioDevice
if (_strDeviceType == "pcm") {
get_mixer_level("hw:0", PCM_VOLUME, &level);
return level;
} else if (_strDeviceType == "capture") {
get_mixer_level("hw:0", CAPTURE_VOLUME, &level);
return level;
}
}}}
There are a couple of things here:
* as the comment says, this code does not get the device that in the user
settings
* I do not why "hw:0" was chosen, but a more sensible choice should be
"default"
* I think that "Master" value instead of "PCM" volume should be used for
playback, the first one should be always present (e.g. both hw:0 and and
pulseaudio), the latter is "hw:0" specific
* the capture mixer device is somehat more difficult to choose; right
know it is set to "Capture", but e.g. my hw:0 as only "Int Mic" and "Ext
Mic" (and therefore I also see the messages reported by iNPUTmice).
However my "default" device (i.e. pulseaudio) has "Capture", so I would
leave it so
That said, I am not sure what sould be the right way do deal with the
mixer. For example, some cards have two capture volumes, like mine. How do
you choose the right one? Ask the user? This should not be a concern of
the application... I believe that pulseaudio is the right way to go...
--
Ticket URL: <http://trac.qutecom.org/ticket/40#comment:5>
QuteCom <http://trac.qutecom.org>
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