>> > >> > * Exact-channels can be set to false to allow devices to be opened with >> > any channel count instead of just the one specified in the channel >> map. >> >> Do these kind of devices need more than one profile if they have same >> channel Min and channel Max and both are larger than two ? > > > This seems to be the common case that we're trying to handle here, and it will end up with the profiles "off", "generic input" "generic output" and "generic output + generic input". > > >> How can user capture stereo from a FireWire device which only support 6 >> channels > > > With this patch set, PA will setup a default channel map. I e, recording stereo will mean recording from the first two channels. > > >> capture as pulseaudio downmix 6 channels to stereo for playback >> stream? >> >> Can pulseaudio provide a control to select stereo capture from first >> Jack, second jack .... ? > > > You'll need module-remap-source for that. > Will this change affect the 4 ch capture device ? How do user select stereo or 4ch capture ? <a href="http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/mixer/profile-sets/default.conf?id=7bb8442c111d5e1fba20eb101eb854edd5392627">http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/mixer/profile-sets/default.conf?id=7bb8442c111d5e1fba20eb101eb854edd5392627</a> USB Mixer: usb_id=0x14152000, ctrlif=1, ctlerr=0 Card: OmniVision Technologies, Inc. USB Camera-B4.04.27.1 at usb-0000:00:1d.7-4, high Unit: 3 Control: name="Mic Capture Volume", index=0 Info: id=3, control=2, cmask=0xf, channels=4, type="S16" Volume: min=0, max=1, dBmin=0, dBmax=0 > >> The problems are non standard volume control names > > > The firewire drivers currently don't implement volume controls the normal ALSA mixer way. > For some other cards (PCI, USB), you're right that the names are sometimes non standard. Please fix that in ALSA. :-) > Do pulseaudio really support 4 ch capture ?