Audio broken after an attempt to use USB microphone: advice/help wanted

[Andras Farkas]

The problem was resolved.  All I had to do was:
mixer -f /dev/mixer4 -s mix 0
full convo here:
https://forums.freebsd.org/threads/audio-broken-after-attempt-to-use-usb-microphone-help-wanted.72519/
Thanks so much!

On Wed, Oct 9, 2019 at 9:26 AM Andras Farkas <deepbluemistake at gmail.com> wrote:
>
> Hello!
>
> A few months ago, I decided I wanted to setup a USB microphone so I
> could have a voice chat with someone.
> I followed the instructions in webcamd's pkg-message, specifically to
> enable cuse and webcamd.
> After rebooting, I noticed there was a constant hissing/static in my
> headphones (they just have a regular headphone connector, they're not
> USB) whose volume didn't change even as I changed my system's volume.
> Things like music or other sounds could be heard along with the
> static, and their volume can be controlled.
> The microphone also wasn't working, either, though that's not what I
> worry about right now.
> So I disabled cuse and webcamd, undoing everything I did to enable
> them, and rebooted. But the static remained.
> And since then, I haven't found a way to get the constant static to
> stop. I haven't used any audio at all on FreeBSD since then, and
> sorely miss it.
> The static seems to start at the same time the login prompt appears on
> screen, after the dmesg -a type stuff.
>
> Does anyone have any ideas? What could enabling cuse or webcamd could
> have done that wouldn't have been undone by disabling them?
> I'd like to have working sound again so I can listen to music once
> more, and would be thankful if anyone could help me.
>
> Specific information, in case it helps:
> $ freebsd-version
> 12.0-RELEASE-p10
> $ uname -a
> FreeBSD nyann.tanasinn.mochi 12.0-RELEASE-p10 FreeBSD 12.0-RELEASE-p10
> GENERIC  amd64
> I also use Lumina as my DE.
>
> I originally posted this here:
> https://forums.freebsd.org/threads/audio-broken-after-attempt-to-use-usb-microphone-help-wanted.72519/