Microphone doesn't work on OpenBSD
reddit / BSD

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zielonykid1234 · 2021-12-08 14:48

Any fixing ideas please

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gumnos · 2021-12-08 14:56

Have you set [`kern.audio.record=1`](https://www.openbsd.org/faq/faq13
.html#enablerec) to enable recording?

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zielonykid1234 · 2021-12-08 14:59

of course

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gumnos · 2021-12-08 15:23

okay, you hadn't mentioned that, so wanted to make sure.

It would also help to have the output of the following commands:

    $ sndioctl
    $ grep sndio /etc/rc.conf.local
    $ sysctl kern.audio

as well as any `dmesg` output related to audio devices like

    $ dmesg | awk -F'[ :]' '$2 == "at" {a[$1] = $3; f[$1] = $0}$1 ~
/^audio/ { print "Device", n = $1; while (n in a) {print
f[n];n=a[n]}}'

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zielonykid1234 · 2021-12-08 15:30

`sndioctl`:

    output.level=0.204
    output.mute=0
    app/firefox0.level=1.000
    app/firefox1.level=1.000
    app/firefox2.level=1.000

`grep sndio/etc/rc.conf.local`: no output

`sysctl` [`kern.audio`](https://kern.audio): `kern.audio.record=1`.

The dmesg command:

    Device audio0
    audio0 at azalia0
    azalia0 at pci1 dev 0 function 1 vendor "NVIDIA", unknown product
0x2291 rev 0xa1: msi
    pci1 at ppb0 bus1
    ppb0 at pci0 dev 1 function 0 "Intel Core 6G PCIE" rev 0x02: msi
    pci0 at mainbus0 bus 0
    mainbus0 at root
    Device audio1
    audio1 at azalia1
    azalia1 at pci0 dev 31 function 3 "Intel 400 Series cAVS" rev
0x00: msi
    pci0 at mainbus0 bus0
    mainbus0 at root

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gumnos · 2021-12-08 18:03

Do you know which of those two devices (`audio0` or `audio1`) the
microphone is plugged into? And which application(s) are you using to
test the recording (making sure that it's pointed at the appropriate
hardware)?

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zielonykid1234 · 2021-12-08 18:24

audio0 is my noVideo GPU, audio1 is my actual speaker, i don't know
what's with my microphone, it's a laptop built-in device. I test the
microphone with Firefox.

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gumnos · 2021-12-08 18:48

strange. Does `doas mixerctl` output anything useful? Particularly
interested in the `record.*` and the `inputs.*` entries.

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zielonykid1234 · 2021-12-08 18:49

>doas mixerctl

    outputs.digital-out_sou=dac-0:1
    outputs.digital-out_sen=unplugged
    record.enable=sysctl

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gumnos · 2021-12-08 20:13

that's it? I was expecting to see bunches of lines like I do on my
OpenBSD laptops here.

    gumnos@mini10: doas mixerctl | awk -F[.] '{++a[$1]}END{for (k in
a) print k, a[k]}' | sort
    inputs 18
    outputs 22
    record 10

    gumnos@inspiron: doas mixerctl | awk -F[.] '{++a[$1]}END{for (k in
a) print k, a[k]}' | sort
    inputs 8
    outputs 16
    record 10

    gumnos@solo: doas mixerctl | awk -F[.] '{++a[$1]}END{for (k in a)
print k, a[k]}' | sort
    inputs 18
    outputs 8
    record 4

To only have two `output` entries and one `record` seems a bit sparse.

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zielonykid1234 · 2021-12-08 20:25

so what? Is my mic unsupported?

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gumnos · 2021-12-08 20:51

I'd start with trying to record from various sources using the built-
in tools rather than putting Firefox in the mix.

    $ aucat -f snd/0 -o test.wav

then try `snd/1` (and `snd/2` etc, until you get a device-
doesn't-exist sort of error), repeating until you have a `.wav` file
that hopefully works and you know which device is the desired
recording input device.

If you can successfully get a recording using `aucat`, then it reduces
it to a Firefox issue rather than an OpenBSD issue.

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zielonykid1234 · 2021-12-08 21:32

snd/0 is the noVidia GPU, snd/1 is my speaker, snd/2 (or greater)
doesn't exist (the error message).

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gumnos · 2021-12-08 22:00

so if you did

    $ aucat -f snd/0 -o test.wav

for a while, tapped on or spoke into the mic, and then hit `^C`, did
the resulting `test.wav` contain your noise?  If you repeat it with
`snd/1`, does the resulting `test.wav` contain your noise?  If neither
produces results, there may be some other issue at play.  If one of
them successfully records, then we've narrowed it down to a FF issue
rather than an OpenBSD issue.

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zielonykid1234 · 2021-12-08 22:07

with snd/0 and snd/1 i have the same file,
[here](https://pastebin.com/XbHBYG3c) are the contents dumped with
hexdump.

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gumnos · 2021-12-08 22:12

Okay, I'm out of my depth here, but if `aucat` isn't able to record
successfully, then it's either a driver thing or some other
configuration issue I'm unable to track down.

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zielonykid1234 · 2021-12-08 22:22

shit i need a working microphone, it also won't detect plugged in
headphones mic. Thank you for trying to help.

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Paspie · 2021-12-11 13:44

I suggest posting a full dmesg.