'Twas brillig, and Raymond Yau at 23/06/10 02:15 did gyre and gimble: > why PA server still insist to open front device for capturing ? Couldn't tell you. Perhaps Lennart is unaware that it is considered invalid? I'll ask him. > http://thread.gmane.org/gmane.linux.alsa.devel/67912/focus=68248 > > As Takashi had already mention that > > "I agree that the capture from "front" PCM isn't considered as valid. > The "front", "rear", "center_lfe" definitions are rather for multi-channel > playbacks. The capture on these channels aren't useful in most cases." > > you can perform an experiement > > pcm.test { > type softvol > slave.pcm "hw:0,0" > control { > name "PA Playback Volume" > card 0 > } > > arecord -D test -f CD -d 10 -v test.wav > > you will find "PA Playback Volume" in playback screen of alsamixer > > I am not sure the softvol control created when PA open front device > for playback and capture is used for playback or capture > > BTW , PA still using "front" to open CTL device too You'll have to ask Lennart directly about that bit. I can't speak for him with regards to the full setup of the mixer path probing stuff, so perhaps "front" should be edited out of this for paths. It would likely be a fairly trivial change to configuration files rather than any code changes. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel