On Mon, May 11, 2026 at 02:43:03PM +1000, Jason Tubnor wrote: > > On 5/11/26 10:59, Stuart McKim wrote: > > At some point in the last month (I think), firefox stopped getting > > microphone audio from my USB webcam. I've tried another webcam, and a > > USB audio adapter. When I go to a website that needs audio, such as a > > videoconference, I get prompted to allow the microphone, which I allow, > > but no audio goes through. When using mictests.com, it recognizes that I > > have a microphone named "default", which makes sense for sndio, but no > > audio is detected. > > > > Microphone audio works fine in ungoogled chromium, and other > > applications. > > > > I'm not sure when this started, since I only rarely use the microphone > > in firefox, but it would be nice to not need chromium for my video > > calls. I *think* it was working on 19 April when I had a video call. > > It's also possible I joined that call from Linux. > > > > Any thoughts of where to continue debugging? > > > I don't think it is a sysctl issue where you haven't enabled recording but > worth checking: > > # sysctl kern.audio.record=1 > > https://www.openbsd.org/faq/faq13.html#enablerec
I've done that. > Another thing might be default is different between what Chromium is using. > See: https://www.openbsd.org/faq/faq13.html#usbaudio > > $ sndioctl server.device=1 Perhaps what's complicating this is that audio playback is through the integrated audio (audio0 at azalia0), but recording/microphone is through the USB webcam (audio1 at uaudio0). To make this work, I have the following in my .xsession: # use built-in audio output export AUDIOPLAYDEVICE=snd/0 # use secondary audio input (first usb device, webcam) export AUDIORECDEVICE=snd/1 For reference, the output of sndioctl is: buffalo ~ $ sndioctl -f snd/0 input.level=0.486 input.mute=1 output.level=0.494 output.mute=0 app/firefox.level=1.000 app/pulseaudio.level=1.000 app/ungoogledc.level=1.000 buffalo ~ $ sndioctl -f snd/1 input.level=0.749 input.mute=0 output.level=1.000 app/audacity.level=1.000 app/ungoogledc.level=1.000 Perhaps firefox isn't using that environmental variable? -- Stuart A. McKim, P.E. Idaho Falls, ID
