Re: Mic does not work with Zoom on Chromium 92.0.4515.159.

From: KIRIYAMA Kazuhiko <kiri_at_truefc.org>
Date: Tue, 05 Oct 2021 19:33:11 +0900
On Mon, 04 Oct 2021 20:18:52 +0900,
Tomasz CEDRO wrote:
> 
> [1  <text/plain; UTF-8 (7bit)>]
> audio backend changed in chromium recently to sndio only?
> 
> for me the problem of no microphone sound on chromium was invalid default
> microphone selected using hdmi input.
> 
>  after selecting different microphone with sndio things work fine :-)
> 
> https://www.tomek.cedro.info/bsd-chromium-audio-mic/

I set `export AUDIORECDEVICE="rsnd/4"', but could not grow
/dev/dsp.4.0 ;-(

# dmesg | tail -50
uhub4: detached
uhub3: detached
ugen0.5: <GenesysLogic USB2.1 Hub> at usbus0
uhub3 numa-domain 0 on uhub2
uhub3: <GenesysLogic USB2.1 Hub, class 9/0, rev 2.10/6.54, addr 48> on usbus0
uhub3: 4 ports with 4 removable, self powered
ugen0.6: <PFU Limited HHKB-Hybrid> at usbus0
ukbd1 numa-domain 0 on uhub3
ukbd1: <keyboard> on usbus0
kbd3 at ukbd1
ukbd2 numa-domain 0 on uhub3
ukbd2: <Multi-Media> on usbus0
kbd4 at ukbd2
uhid0 numa-domain 0 on uhub3
uhid0: <PFU Limited HHKB-Hybrid, class 0/0, rev 1.10/0.01, addr 58> on usbus0
ugen0.7: <Logitech Wireless Receiver> at usbus0
ums1 numa-domain 0 on uhub3
ums1: <Logitech Wireless Receiver, class 0/0, rev 1.10/3.02, addr 61> on usbus0
ums1: 5 buttons and [XYZ] coordinates ID=1
ugen0.8: <Sonix Technology Co., Ltd. USB  Live camera> at usbus0
uaudio0 numa-domain 0 on uhub3
uaudio0: <USB Live Camera audio> on usbus0
uaudio0: No playback.
uaudio0: Record[0]: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 44100 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: Record[0]: 11025 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio0: No MIDI sequencer.
pcm3: <USB audio> numa-domain 0 on uaudio0
uaudio0: No HID volume keys found.
ugen0.9: <GenesysLogic USB2.1 Hub> at usbus0
uhub4 numa-domain 0 on uhub3
uhub4: <GenesysLogic USB2.1 Hub, class 9/0, rev 2.10/6.54, addr 53> on usbus0
uhub4: 4 ports with 4 removable, self powered
ugen0.10: <Solid State System Co.,Ltd. TKGOU PnP USB Microphone> at usbus0
uaudio1 numa-domain 0 on uhub4
uaudio1: <Solid State System Co.,Ltd. TKGOU PnP USB Microphone, class 0/0, rev 1.10/1.00, addr 62> on usbus0
uaudio1: No playback.
uaudio1: Record[0]: 48000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio1: No MIDI sequencer.
pcm4: <USB audio> numa-domain 0 on uaudio1
uaudio1: HID volume keys found.
ugen0.11: <Harman Multimedia JBL Pebbles> at usbus0
uaudio2 numa-domain 0 on uhub4
uaudio2: <Harman Multimedia JBL Pebbles, class 0/0, rev 1.10/1.00, addr 60> on usbus0
uaudio2: Play[0]: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer.
uaudio2: No recording.
uaudio2: No MIDI sequencer.
pcm5: <USB audio> numa-domain 0 on uaudio2
uaudio2: HID volume keys found.
pid 6614 (wmaker), jid 5, uid 4098: exited on signal 10
# export AUDIORECDEVICE="rsnd/4"
# service sndiod restart
Stopping sndiod.
Waiting for PIDS: 58999.
Starting sndiod.
# ls -alg /dev/dsp*
crw-rw-rw-  1 root  wheel  0x10d 10月  5 10:46 /dev/dsp0.0
crw-rw-rw-  1 root  wheel   0xa7  9月 17 20:28 /dev/dsp1.0
crw-rw-rw-  1 root  wheel   0xa9  9月 17 20:28 /dev/dsp2.0
crw-rw-rw-  1 root  wheel  0x111 10月  5 11:22 /dev/dsp5.0
# cat /dev/sndstat 
Installed devices:
pcm0: <NVIDIA (0x0094) (HDMI/DP 8ch)> (play)
pcm1: <NVIDIA (0x0094) (HDMI/DP 8ch)> (play)
pcm2: <NVIDIA (0x0094) (HDMI/DP 8ch)> (play)
pcm3: <USB audio> (rec)
pcm4: <USB audio> (rec)
pcm5: <USB audio> (play) default
No devices installed from userspace.
# 

I set `sysctl hw.snd.default_unit=5', then grew
/dev/dsp5.0. Is there any kernel parameter should be set ?
In sndctl(1), if allow audio recording, set
kern.audio.record to input device number, but in
14.0-CURRENT, there is not oid of kern.audio.record.

# sysctl kern.audio.record=4
sysctl: unknown oid 'kern.audio.record'
# 

---
Kazuhiko Kiriyama
Received on Tue Oct 05 2021 - 10:33:11 UTC

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