Microphone not working, Logitech webcam

J

joplass

Hello,

I have a logitech webcam connected via usb. I was able to have the camera working the microphone does not work. I searched the forum but it seems there is no similar thread. Any idea?

Thank you,

Code: 
FreeBSD duala 12.2-RELEASE FreeBSD 12.2-RELEASE r366954 GENERIC  amd64

Code: 
$ sudo usbconfig
ugen0.1: <0x8086 XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=SAVE (0mA)
ugen2.1: <Intel EHCI root HUB> at usbus2, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen1.1: <Intel EHCI root HUB> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen0.2: <vendor 0x0461 USB Optical Mouse> at usbus0, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON (98mA)
ugen1.2: <vendor 0x8087 product 0x8008> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen2.2: <vendor 0x8087 product 0x8000> at usbus2, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA)
ugen2.3: <vendor 0x8087 product 0x07dc> at usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)
ugen2.4: <Broadcom Corp 5880> at usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)
ugen0.3: <vendor 0x046d product 0x0808> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

$ cat /dev/sndstat
Installed devices:
pcm0: <NVIDIA (0x0041) (HDMI/DP 8ch)> (play)
pcm1: <NVIDIA (0x0041) (HDMI/DP 8ch)> (play)
pcm2: <Realtek ALC292 (Analog 2.0+HP/2.0)> (play/rec) default
pcm3: <Realtek ALC292 (Analog)> (play/rec)
pcm4: <USB audio> (rec)
No devices installed from userspace.

Code: 
$ mixer
Mixer vol      is currently set to  95:95
Mixer bass     is currently set to  70:70
Mixer treble   is currently set to 100:100
Mixer pcm      is currently set to 100:100
Mixer speaker  is currently set to  80:80
Mixer line     is currently set to 100:100
Mixer mic      is currently set to  97:97
Mixer mix      is currently set to  97:97
Mixer rec      is currently set to  75:75
Mixer igain    is currently set to   0:0
Mixer ogain    is currently set to 100:100
Recording source: mic

I recorded white noise with
Code: 
$ rec -c 2 -r 44100 filename.ogg

Input File     : 'default' (ossdsp)
Channels       : 2
Sample Rate    : 44100
Precision      : 16-bit
Sample Encoding: 16-bit Signed Integer PCM

In:0.00% 00:00:10.40 [00:00:00.00] Out:455k  [      |      ]        Clip:0
 
If you look at the bottom note it'll read:

The built-in microphone of newer Logitech webcams works with snd_uaudio(4) (tested with C160, C210, C270 HD and C310 HD), but it requires the following command after an application (e.g. pwcview or skype) has opened the camera device (/dev/video0) for the first time:

  • usbconfig -d ugenX.Y do_request 0x22 0x01 0x100 0x86 0x03 0x80 0xBB 0x00
Replace "ugenX.Y" with your device, according to the output from "usbconfig" or "dmesg". You have to issue that command only once; it remains in effect until you unplug the camera. You can use the following command to test the microphone:

  • dd if=/dev/dspX.0 of=/dev/dspY.0 bs=64
Where "X" is the pcm number of the microphone, and "Y" is the pcm number of your normal playback device (speakers). The command "cat /dev/sndstat" lists all devices and their numbers.
Click to expand...
You can probably try that considering newer webcams most likely isn't on that list but it might work the same way.
 
Holy cow... after reading this thread I can finally be "me" and participate in my weekly tele-health mental-health super-health meetings. Miraculously, after changing the magic kernel tunable (where's the popcorn?) *.default_unit to the usb_audio device instead of my/the default (not HD) audio output, my lovely web browser (no disprespect) gave me my real voice. Many thanks, friends.
 
alexseitsinger said:
Holy cow... after reading this thread I can finally be "me" and participate in my weekly tele-health mental-health super-health meetings. Miraculously, after changing the magic kernel tunable (where's the popcorn?) *.default_unit to the usb_audio device instead of my/the default (not HD) audio output, my lovely web browser (no disprespect) gave me my real voice. Many thanks, friends.
Click to expand...
alexseitsinger: Would you mind expanding on what you did to make fix the microphone. I cant seem to get my Logitech Brio4k to work with jitsi, the webcam works on but the mic while it works the sound is garbled.
 
sfourman said:
alexseitsinger: Would you mind expanding on what you did to make fix the microphone. I cant seem to get my Logitech Brio4k to work with jitsi, the webcam works on but the mic while it works the sound is garbled.
Click to expand...
My friend: what seems to be the issue on your end? Perhaps if you provide me with something more specific I can make myself more useful to you.

As it turns out my lovely webcamera doesn't like to project anyting except a wonderful green screen from multimedia/pwcview when I use it with my wonderful second-hand Radeon HD 6870 video cerd(s) a la radeon_BARTS_*_bin.ko. HOWEVER, multimedia/pwcview has NO ISSUE providing me with my reflection (handsome btw) when I make use of i915kms.ko.
 
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