Logitech camera microphone does not work / makes "chipmunk" sound

[Alex Boardman]

Did not know which application to log so feel free to let me know and I'll upload the correct log. In Natty, this mic worked great. Now, in the sound control panel, the mic does not show any input level at all and sound recorder does not record any sound.

edit: I can also confirm the same behavior as Alex Popovskiy. It either works but plays too fast (high pitch) or it doesn't work at all.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.1.91-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Tue Sep 6 20:31:13 2011
ExecutablePath: /usr/bin/gnome-control-center
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: alex 1594 F.... pulseaudio
 /dev/snd/controlC0: alex 1594 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xf9ef4000 irq 16'
   Mixer name : 'VIA VT1708S'
   Components : 'HDA:11060397,18490397,00100000'
   Controls : 36
   Simple ctrls : 20
Card1.Amixer.info:
 Card hw:1 'U0x46d0x809'/'USB Device 0x46d:0x809 at usb-0000:00:13.2-6, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0809'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6400
   Mono: Capture 6400 [100%] [31.00dB] [on]
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=8ccfea11-7ba8-42e2-bc75-a37e20a8c83c
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-10-generic root=UUID=3c8a3aec-07c0-47ad-bab8-0365abb68a42 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
RelatedPackageVersions:
 linux-restricted-modules-3.0.0-10-generic N/A
 linux-backports-modules-3.0.0-10-generic N/A
 linux-firmware 1.60
Tags: oneiric running-unity
Uname: Linux 3.0.0-10-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 09/07/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.70
dmi.board.name: M3A770DE
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd09/07/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnM3A770DE:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 843431

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Alex Boardman (boardinary)]

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[Alex Popovskiy (alex-popovskiy)]

I have similar issue with microphone too. But in my case I can record from camera's microphone with 'sound recorder', but resulting recording seems like the recording source was playing very fast.
My camera is Logitech C210 (ID 046d:0819) and it worked ok on Natty

[Alex Boardman (boardinary)]

I can also confirm the same behavior as Alex Popovskiy. It either works but plays to fast (high pitch) or it doesn't work at all.

[Brad Figg (brad-figg)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We have noted that there is a newer version of the development kernel currently in the release pocket than the one you tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

Thank you for your help.

[Alex Popovskiy (alex-popovskiy)]

Latest kernel update didn't solve the problem for me

[lunix (bob-l-lewis)]

Latest 3.0.0-11.18 kernel didn't help for me either. I am using a Logitech C910. Camera works but not the microphone.

[Alex Popovskiy (alex-popovskiy)]

I ran some tests and here is what I found: I can record normal sound from webcam's microphone, but only once after reboot. Any subsequent attempts will record high pitch garbage. I've also noticed that track duration counter in gnome-sound-recorder lags (one second in counter is like 2-3 normal seconds) as well as input level indicator. There is also noticeable sound glitch when starting first (normal) record, so maybe this bug is not about the kernel but pulseaudio's fault.

[Alex Popovskiy (alex-popovskiy)]

I was wrong about pulseaudio. Now I'm sure its 3.x kernel bug/regression. I've just tested 3 different kernels: 3.0.0 (current oneiric) - no mic input/glitches, 3.1-rc4 (from mainline ppa) - same as above, 2.6.38 (from natty) - mic works flawlessly.

[Brad Figg (brad-figg)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

Thank you for your help, we really do appreciate it.

[lunix (bob-l-lewis)]

I did a fresh install of Ubuntu Beta 2 and the microphone now works for me. I'll let the original reporter status this
and close it if he no longer has the issue.

[Alex Popovskiy (alex-popovskiy)]

Microphone still doesn't work after cold boot or reboot from windows, but I can get it working by reconnecting the webcam now. It is a workaround, but not really comfortable :(

[Brad Figg (brad-figg)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

Thank you for your help, we really do appreciate it.

[j0c1323 (j0c1323)]

I confirm the same problem with a Logitech C310.

[Alex Popovskiy (alex-popovskiy)]

No change for me with new kernel

[sordna (sordna)]

Adding patch that fixes the issue. Patch taken from kernel bug #35922 as well as archlinux and redhat who already fixed the issue in their kernels. I added many more affected cameras in the present patch. I hope we see it applied to oneiric kernels soon, otherwise the wikis that report how nicely all these Logitech cameras play with linux should be rewritten because the audio has been terribly broken, while it worked fine with natty.

--- drivers/usb/core/quirks.c 2011-10-14 12:48:20.000000000 -0700
+++ quirks.c 2011-10-14 22:31:12.000000000 -0700
@@ -38,6 +38,33 @@ static const struct usb_device_id usb_qu
  /* Creative SB Audigy 2 NX */
  { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* Logitech Webcam C600 */
+ { USB_DEVICE(0x046d, 0x0808), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam Pro 9000 */
+ { USB_DEVICE(0x046d, 0x0809), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam C210 */
+ { USB_DEVICE(0x046d, 0x0819), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam C260 */
+ { USB_DEVICE(0x046d, 0x081a), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam C310 */
+ { USB_DEVICE(0x046d, 0x081b), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam C910 */
+ { USB_DEVICE(0x046d, 0x0821), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Webcam C270 */
+ { USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Quickcam Pro 9000 */
+ { USB_DEVICE(0x046d, 0x0990), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Logitech Quickcam Vision Pro */
+ { USB_DEVICE(0x046d, 0x09a6), .driver_info = USB_QUIRK_RESET_RESUME },
+
  /* Logitech Harmony 700-series */
  { USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },

[Edward Hunt (ephunt)]

same problem with a Logitech C310

[diqrtvpe (ccollett)]

I can verify that the patch works, with a Logitech C310.

[Edward Hunt (ephunt)]

how can I apply the patch?

[Ruben Silveira (ruben-silveira)]

I can confirm that it is happening with a Logitech Pro 9000 Webcam (USB Device 0x46d:0x809) in Ubuntu 11.10 amd64 3.0.0-12-generic.

[sordna (sordna)]

To apply the patch you need to download the attachment, and also have the latest kernel source downloaded (apt-get source linux-image-3.0.0-12-generic).
Then you would apply the patch as follows:
patch linux-3.0.0/drivers/usb/core/quirks.c < 843431.patch
and build/install the kernel as usual... if you're not familiar with kernel building you would need to look it up !
I'll just post what I did on my quad core box (I like to compile up to 4 objects concurrently to build the kernel faster), I build the kernel into image & headers deb files, which I then install with dpkg, then reboot.

cd linux-3.0.0
sudo CONCURRENCY_LEVEL=4 make-kpkg --initrd kernel-image kernel-headers
cd ..
dpkg -i linux-image-3.0.4_3.0.4-10.00.Custom_amd64.deb linux-headers-3.0.4_3.0.4-10.00.Custom_amd64.deb

[manyThreads (rmfarber)]

ditto confirmation of the chipmunk sound bug with my logitech 9000 webcam (possible duplicate bug 871543?)

Bus 002 Device 004: ID 046d:0809 Logitech, Inc. Webcam Pro 9000

[MMaathieu (maaathieu)]

same problem with Logitech C270. can someone share pacakges with the corrected kernel ?

[Agent (agent-m)]

I have the exact same issue, with the same Webcam, Logitech Webcam Pro 9000. Worked perfectly on 11.04, but now no audio or chipmunk audio. Am unable to use Skype ( which I use for business ) at the moment as a result.

[Agent (agent-m)]

After running:
patch linux-3.0.0/drivers/usb/core/quirks.c < 843431.patch

I got the following error:
Hunk #1 FAILED at 38.
1 out of 1 hunk FAILED -- saving rejects to file linux-3.0.0/drivers/usb/core/quirks.c.rej

[sordna (sordna)]

I suspect the patch's whitespace was malformed while you saved it. Copy the URL and download it with wget.
Alternatively, add the relevant line that matches your camera's id to quirks.c manually (without including the leading '+' character from the patch of course)

[Agent (agent-m)]

Sorry, was my fault...hadn't downloaded the kernel source ( step 1 ...read instructions properly ).

Once I have compiled, built and installed the kernel, will ubuntu still receive kernel updates through the update manager?
And if not, can I still revert back to the original kernel when they fix this issue in the original kernel?

[sordna (sordna)]

As long as you have the "linux-image-generic" package installed, it will always "depend" on the latest official ubuntu kernel, so you'll still be getting kernel updates. Even if that was not the case, you can always have multiple kernels at any time, they will appear in your grub menu to choose from when you boot. And you can remove kernel packages you no longer need, any time. Anyway this bug report is not the place to discuss kernel building (there's plenty of resources all over the Internet for that), the purpose I posted the patch is for Ubuntu folks to pick it up so we all avoid kernel building.

At this point, I think all we (users) should be providing is our affected camera usb id's if the are NOT in the patch already, to be added, and hopefully convince Ubuntu folks to resolve this bug soon... I can't believe redhat fixed it already, and Ubuntu hasn't yet!

[Joseph Salisbury (jsalisbury)]

Comment #25 in bug 858412 reports the issue goes away when running the 3.1.0-999-generic kernel .

[Joseph Salisbury (jsalisbury)]

I would be great if others having this issue could test the latest mainline build. Details can be found at:
 https://wiki.ubuntu.com/KernelMainlineBuilds

[sordna (sordna)]

Joseph, comment #25 in bug 858412 says the issue is still exhibited in sound recorder. So it's not really gone.
Anyway, what is kernel 3.1.0-999-generic ? Where do I download it so I can test? Please provide a URL for it.

I tested the latest mainline kernel yesterday: kernel-ppa/mainline/v3.1-rc10-oneiric (dated october 19) and the problem still persists in skype, my voice is speeded up like 300% and is incomprehensible.

[Ricardo Almeida (ric-almeida)]

My Compaq CQ60 webcam also doesn't work with 3.0 kernel shipped with Ubuntu. It's not a Logitech but I'm hopping it's a similar fix :)

Bus 002 Device 002: ID 04f2:b091 Chicony Electronics Co., Ltd Webcam

I installed kernel 2.6.39-02063904-generic and it works correctly...

[Alex Boardman (boardinary)]

Ricardo, you should file a separate bug. Run ubuntu-bug from the terminal to do so.

[Kurt Miller (miller-kurt-e)]

Using: ID 046d:080a Logitech, Inc. Portable Webcam C905
Running: 3.1.0-999-generic

After installing the kernel yesterday the "chipmunk" problem went away so I thought it was solved. But, today it's doing it again. And, when I say it went away, I'm referring only to Skype. Sound recorder still had the same problem and the kernel upgrade didn't help.

[sordna (sordna)]

Ok Kurt, I'll add the C905 webcam id to the patch, but first you must tell me where I can find the 3.1.0-999-generic kernel to download, I have searched but not able to find it anywhere for download.

[Alex Popovskiy (alex-popovskiy)]

Sordna, you can download the kernel here http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/

[LaunchPeter (launchpeter)]

Same problem here. No Sound in Skype, sometimes no sometimes chipmunk ins sound-recorder.
But with gstreamer-properties the input test works fine. I hear what I say lound and clear.

Linux yeah 3.0.0-12-generic x86_64

[sordna (sordna)]

LaunchPeter, you forgot the most important piece of info: What's your camera's model and USB id ?
(lsusb on a terminal window will give you this info)

[Avery (docaltmed)]

Also affects me.

Bus 001 Device 006: ID 046d:081a Logitech, Inc.

[Kurt Miller (miller-kurt-e)]

Just an FYI. Sound Recorder and Skype were both not responding after I uninstalled ubuntu-desktop that depends on some of the ALSA stuff. After reinstalling ubuntu-desktop they both started to at least acknowledge the mic albeit with the "chipmunk" nonsense.

Sordna, does that patch seem to work? If so, where can I grab it?

[Kurt Miller (miller-kurt-e)]

In the meantime...

Workaround until the 3.0 kernel gets sorted: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.38.8-natty/

Download:

linux-headers-2.6.38-02063808_2.6.38-02063808.201106040910_all.deb
linux-headers-2.6.38-02063808-generic_2.6.38-02063808.201106040910_i386.deb
linux-image-2.6.38-02063808-generic_2.6.38-02063808.201106040910_i386.deb

I put them in a separate dir and then run: dpkg -i *

Select the 2.6xxx kernel in grub and voila! No more webcam mic headaches while we wait for the fixes to gel.

[sordna (sordna)]

Yes, the patch works beautifully, I just added your camera to it:

[marikka (marek-miettinen)]

This also affects me. I have a Logitach C300.

Bus 001 Device 002: ID 046d:0805 Logitech, Inc. Webcam C300

[sordna (sordna)]

Adding updated patch with the C300 and some other webcams (C200, C250, B500, C500) I got from redhat kernel-2.6.40.7-0.fc15 ... by the way redhat is tracking the bug here: https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=742010

[LaunchPeter (launchpeter)]

sordna, I've got a Logitech C600.

Bus 001 Device 003: ID 046d:0808 Logitech, Inc. Webcam C600

[Kurt Miller (miller-kurt-e)]

Did the kernel patch and all is good. Thanks to sordna!

[coen (cococoen)]

I'm experiencing the exact same problem with my c270, however I never applied a patch to the kernel and I am a bit unsure about it. Can anyone explain what I have to do, step-by-step, or place a link to a good tutorial? Thanks!

[Kurt Miller (miller-kurt-e)]

This is quick and dirty set of patching instructions. No guarantees to match your installation exactly but it should give you a pretty good idea of what is involved.

sudo apt-get install make-kpkg
sudo apt-get install kernel-package
sudo apt-get install kernel-image
sudo apt-get install libncurses5-dev

# create a dir: mkdir kernel
# cd kernel

sudo apt-get source linux-image-3.0.0-12-generic
cd linux-3.0.0
make menuconfig
#goto: Device Drivers/Staging drivers/RTS5139 and disable (buggy driver that hangs compile)
cd ..

wget https://bugs.launchpad.net/ubuntu/+source/linux/+bug/843431/+attachment/2566636/+files/843431.patch
patch linux-3.0.0/drivers/usb/core/quirks.c < 843431.patch
cd linux-3.0.0
sudo CONCURRENCY_LEVEL=4 make-kpkg --initrd kernel-image kernel-headers
cd ..
dpkg -i linux-image-3.0.4_3.0.4-10.00.Custom_amd64.deb linux-headers-3.0.4_3.0.4-10.00.Custom_amd64.deb

(filenames will be different depending on your architecture etc.)

[Jay Ó Broin (ismise)]

Affects me as well.

Bus 002 Device 002: ID 046d:0802 Logitech, Inc. Webcam C200

[kaeru (kaeru)]

Bus 001 Device 035: ID 046d:09a4 Logitech, Inc. QuickCam E 3500
also Logitech QuickCam B500

[Markward Kufleitner (mkufleitner)]

This affects too a friend of mine with a Logitech Webcam C210 - he runs Onieric Ocelot and I hear him as a chipmunk over skype.

[Ruben Silveira (ruben-silveira)]

The patch worked like a charm.
Can anyone confirm that the patch made its way into final v3.1-oneiric kernel (3.1.0-030100, 2011-10-24)?

[sordna (sordna)]

This but hasn't even been assigned yet :-(
For now I'm updating the patch with a couple more webcams, including the E3500.

[coen (cococoen)]

It took a few attempts, with various errors, but now the patched kernel is doing it's job. Thanks sordna for patching and thanks Kurt Miller for explaining the basics!

[Jay Ó Broin (ismise)]

The problem is fixed for my Logitech C200 using the 3.1 final kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.1-oneiric/

[sordna (sordna)]

Jay, are you sure? I just tried that kernel, but still get the chipmunk sound on skype. At first, I didn't get any sound at all, then I unplegged and plugged my webcam in, and got the chipmunk sound. Also I keep getting the telltale messages in dmesg... basically I don't see any difference in the 3.1 final kernel, so I think you just got lucky... the bug is 90% reproducible anyway, there are rare times that you start your computer and the webcam works. Please try it a few times, just use the skype test calling service to hear your own voice.

[ 42.736048] 6:3:4: cannot set freq 48000 to ep 0x86
[ 60.168080] 6:3:4: cannot set freq 48000 to ep 0x86
[ 61.168073] 6:3:4: cannot set freq 48000 to ep 0x86
[ 62.168085] 6:3:4: cannot set freq 48000 to ep 0x86
[ 63.168166] 6:3:4: cannot set freq 48000 to ep 0x86
[ 64.168155] 6:3:4: cannot set freq 48000 to ep 0x86
[ 65.168139] 6:3:4: cannot set freq 48000 to ep 0x86
[ 66.168121] 6:3:4: cannot set freq 48000 to ep 0x86
[ 67.168112] 6:3:4: cannot set freq 48000 to ep 0x86
[ 68.168098] 6:3:4: cannot set freq 48000 to ep 0x86
[ 69.168083] 6:3:4: cannot set freq 48000 to ep 0x86
[ 70.168064] 6:3:4: cannot set freq 48000 to ep 0x86
[ 71.168054] 6:3:4: cannot set freq 48000 to ep 0x86
[ 72.168169] 6:3:4: cannot set freq 48000 to ep 0x86
[ 73.168143] 6:3:4: cannot set freq 48000 to ep 0x86
[ 74.168128] 6:3:4: cannot set freq 48000 to ep 0x86
[ 75.168114] 6:3:4: cannot set freq 48000 to ep 0x86
[ 76.168102] 6:3:4: cannot set freq 48000 to ep 0x86
[ 77.168087] 6:3:4: cannot set freq 48000 to ep 0x86
[ 78.168071] 6:3:4: cannot set freq 48000 to ep 0x86
[ 79.168181] 6:3:4: cannot set freq 48000 to ep 0x86

[Ruben Silveira (ruben-silveira)]

I can confirm that v3.1-oneiric kernel (3.1.0-030100, 2011-10-24) does not correct this issue.

[Jay Ó Broin (ismise)]

@sordna: You're right, the first test went fine, but after unplugging the webcam and plugging it back in, the chipmunk sound returned.

[Santiago Franco (santiago-franco)]

Found a quick workaround(Ubuntu Forums) while kernel gets patched. Works great with my logitech pro:

Hello. The problem is that the microphone is in the wrong sound rate by the pulse audio. As a user do the following:

Code:
gedit $HOME/.pulse/daemon.conf
and put the following line on the file:
Code:
default-sample-rate = 16000
save it, and then restart pulseaudio as a user with the following command

Code:
pulseaudio --kill && pulseaudio --start
This should solve the problem.

[Mark Hewitt (holybladder)]

Fantastic! That solved the problem completely, thankyou Santiago. Fix confirmed.

[Guillermo Lo Coco (glococo)]

Hi,
Still bug.
I try to solve 2 different PC (one Atom330+Logitech C270, and AMD1.8ghz+LogC310) . Both PC upgraded to kernel 3.0.
In both PC try the lastest kernel from ppa, and the daily build of 31/10/2011.

In both configurations the image quality of the webcam are very poor, in the atom sometimes do not start.
When Ubuntu start, Unity-start-sound do not sound until unplug the webcam usb.

Dmesg:
[ 866.923111] usb 2-4: USB disconnect, device number 3
[ 885.716043] usb 2-4: new high speed USB device number 4 using ehci_hcd
[ 886.065388] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
[ 886.162145] input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:06.1/usb2/2-4/2-4:1.0/input/input7
[ 887.164092] 4:3:1: cannot get freq at ep 0x86

And from the lastone item.. sometimes many lines..

I try the Santiago workaround, and didnt solve the poor quality issue on both cameras (different PC)

The only way to solve the issue (now) is to return to 2.6.38.

[Guillermo Lo Coco (glococo)]

Sorry, I try 2.6.38 and 39 on Oneric, and the sound seem to be solved. But the image quality not.

Any hint ?

[Guillermo Lo Coco (glococo)]

Hope this dmesg help. I booted this time with latest daily build (31/10/2011)
[ 54.844277] 3:3:1: cannot set freq 16000 to ep 0x86
[ 55.844259] 3:3:1: cannot set freq 16000 to ep 0x86
[ 56.848261] 3:3:1: cannot set freq 16000 to ep 0x86
[ 57.848123] 3:3:1: cannot set freq 16000 to ep 0x86
[ 58.848109] 3:3:1: cannot set freq 16000 to ep 0x86
[ 59.848109] 3:3:1: cannot set freq 16000 to ep 0x86
[ 60.848110] 3:3:1: cannot set freq 16000 to ep 0x86
[ 61.848112] 3:3:1: cannot set freq 16000 to ep 0x86
[ 62.848247] 3:3:1: cannot set freq 16000 to ep 0x86
[ 63.849141] 3:3:1: cannot set freq 16000 to ep 0x86
[ 64.848248] 3:3:1: cannot set freq 16000 to ep 0x86
[ 65.716187] uvcvideo: Failed to query (GET_DEF) UVC control 2 on unit 2: -110 (exp. 2).
[ 65.852246] 3:3:1: cannot set freq 16000 to ep 0x86

(this time with the /.pulse/daemon.conf mod) Sound started but everything else have the same issue.
Camera quality still very poor and at first start cheese cant see anything, only dust. Second better but still bad,

[Guillermo Lo Coco (glococo)]

Well, i made some more test.

In Natty (boot the iso from pendrive and install cheese) work "good", even in higher resolutions. (2.6.38)
In Oneric (installed in 3 PC, 2 atoms & 1amd) with kernels from 2.6.38 to 3.1 and also the latest dialy build and do not work.

Here are some screenshots on the same machine.

Natty: http://bayimg.com/GAkAIAaDM

Oneric: http://bayimg.com/GakajaadM (with 2.6.38)
http://bayimg.com/GAkaKAADm
From 864*480 to up, the image get corrupted and seems to be in gray tones.

Also take too longer to start cheese. I didnt try today with other app like skype, but yesterdat had worst issues since streaming get freezed or something like that and the sound got chopy like in 3x speed. :)

So, if it isnt the kernel, what can be ?

[sordna (sordna)]

glococo, please don't post about the picture / camera color issues in this bug (which is about the sound speedup only), subscribe to bug 875716 instead which is about the colors under cheese... I am hit by that bug too, but they are not related.

[Tuomo Lesonen (tuomo-lesonen)]

I have Ubuntu 11.10 + Logitech Webcam Pro 9000 + Skype and I'm experiencing the "chipmunk" sound during test call.

My workaround is to go to the Skype options "Video Devices" tab and click "Test" to enable webcam (this turns on the red light in the webcam). Now, if I make a test call, the sound is recorded normally. I have not investigated this any more, but for now it works for me.

[saverio (saverio001)]

Same here. If I do a skype test call, I sound like Donald Duck.

Linux Zero 3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 13:27:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
Bus 002 Device 004: ID 046d:0808 Logitech, Inc. Webcam C600

[Andy Whitcroft (apw)]

It seems that the patch in question may have just hit mainline as the commit below:

  commit 2394d67e446bf616a0885167d5f0d397bdacfdfc
  Author: Oliver Neukum <email address hidden>
  Date: Tue Sep 13 08:42:21 2011 +0200

    USB: add RESET_RESUME for webcams shown to be quirky

    The new runtime PM code has shown that many webcams suffer
    from a race condition that may crash them upon resume.
    Runtime PM is especially prone to show the problem because
    it retains power to the cameras at all times. However
    system suspension may also crash the devices and retain
    power to the devices.
    The only way to solve this problem without races is in
    usbcore with the RESET_RESUME quirk.

    Signed-off-by: Oliver Neukum <email address hidden>
    Signed-off-by: stable <email address hidden>
    Signed-off-by: Greg Kroah-Hartman <email address hidden>

$ git describe --contains 2394d67e446bf616a0885167d5f0d397bdacfdfc
v3.2-rc1~183^2~146

As it is marked for stable we should be expecting to see this dropping into the stable tree soon.

[Joseph Salisbury (jsalisbury)]

Would it be possible for someone seeing this issue to test the latest 3.2 release candidate, which is available at:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-rc1-oneiric/

[Tofi (tofiel)]

I have got chipmunk problem too. My webcam is Logitech, Inc. Webcam C200, ID 046d:0802

[sordna (sordna)]

Joseph, I tested the 3.2-rc1-oneiric candidate you pointed to, and it resolves the issue for my Logitech Webcam C310 webcam.

By they way, with the affected kernels, apart from the workaround already posted (putting "default-sample-rate = 16000" in ~/.pulse/daemon.conf)

I learned of another workaround; passing the following option to the kernel on boot time: usbcore.autosuspend=-1

This workaround works well. Of course it turns off the feature than allows USB devices to "autosuspend" to reduce energy consumption when not in use.

[Dima Spivak (dimaspivak)]

Just writing to confirm that sordna's workaround works. For anyone looking to apply it:

- $ sudo nano /etc/default/grub
- Find the line that begins with GRUB_CMDLINE_LINUX_DEFAULT and append usbcore.autosuspend=-1 to tell the system to never autosuspend USB devices. Note that, within the quotes, this field is space-separated. My line now reads:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"
- Save your updated grub file (using nano, CTRL+O and then ENTER to confirm the change).
- Exit your text editor (using nano, CTRL+X).
- $ sudo update-grub

[Christian Heitjan (heitjan)]

Worked for me.

Am 31.10.2011 15:30, schrieb Santiago Franco:
> Found a quick workaround(Ubuntu Forums) while kernel gets patched.
> Works great with my logitech pro:
>
> Hello. The problem is that the microphone is in the wrong sound rate by
> the pulse audio. As a user do the following:
>
> Code:
> gedit $HOME/.pulse/daemon.conf
> and put the following line on the file:
> Code:
> default-sample-rate = 16000
> save it, and then restart pulseaudio as a user with the following command
>
> Code:
> pulseaudio --kill && pulseaudio --start
> This should solve the problem.
>

[Pithikos (manossef)]

Nothing worked for me. I don't have neither the free time to go to an older kernel so will just wait for a fix.

I use the logitech 270c camera on Ubuntu 11.11 64bit. I tryied the daemon.conf solution but that didn't do anything. The audio input will not appear at all for me if I do that.

My problem: Recorded audio is fast forwarded.

[Dima Spivak (dimaspivak)]

Pithikos,

Did you try the solution posted by sordna? I have a very similar camera and installation to you and it works flawlessly now.

PS: With the daemon.conf solution, if the audio device doesn't appear at start up, unplug and replug the webcam and it will show up.

-Dima

[Alexander Orlov (alxorlov)]

I have the same problem too. My webcam is Logitech C310, 046d:081b.

"usbcore.autosuspend=-1" solved the problem.

[diqrtvpe (ccollett)]

Santiago's fix (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/843431/comments/80) worked for my Logitech C310.

[Maui Muc (stefan-mauerberger)]

Also for me and my Logitech c210, Santiago's fix worked fine. Thank you very much therefore.

Btw.: I really do not understand why it takes so long to apply a fix which was announced more than a month ago and was already tested by RedHat a.o.? This totally sucks!

[sordna (sordna)]

Some good news, official kernel 3.0.9 contains patches that fix this issue for several of the
affected webcams (C200, C250, C270, C300, C310, B/C500, Pro 9000),
so the patch posted here doesn't need to by applied to the oneiric kernel,
we just need the oneiric kernel updated to a newer version.
I believe the latest oneiric kernel 3.0.0-13 corresponds to official linux kernel 3.0.6 ...
How soon can Ubuntu maintainers update the next oneiric kernel to be based on 3.0.9 ?

You can see 2 relevant patches mentioned here:
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.0.9

[rosencreuz (rosencreuz)]

@sordna: I have C905, the Santiago's fix (#80) worked for me, but I'm not sure if the patch to kernel 3.0.9 contains my camera version as well. I'm using v3.0.0-12-generic in ubuntu and not very comfortable with compiling and patching kernel. My camera is : 046d:080a Logitech, Inc. Portable Webcam C905.

[sordna (sordna)]

The webcams I did not list, such as the C905, which are in the patch posted here, will be covered in kernel 3.0.11,
so with the 3.0.9 ( which corresponds to upcoming ubuntu kernel 3.0.0-14 according to this mapping table:
http://kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html )
you'll need to keep using on of the workarounds.

[Dennis Shimer (dshimer)]

Santiago's fix (#80) made skype work for me but broke gmail voice functions and Audacity (for me). As they are more important to me than Skype I tried Tuomo's (#87) and it worked not only with the test, but with an actual call. I guess starting the camera before the call made it work.

[Brad Figg (brad-figg)]

There are test kernels at: http://people.canonical.com/~bradf/lp843431.

These kernels contain the commit by sordna which add quirks for
3 Logitech webcams. Please test the appropriate kernel for your
install and report back here on how these kernels work for you.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "patch with fix for additional webcams as of 2011-10-25" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

[sordna (sordna)]

When is a the standard 3.0.0-14-generic going to be released ? It's taking very long.
Hopefully 3.0.0-15-generic will follow soon after, will that be based on 3.0.11 or on some other kernel version?

[Brad Figg (brad-figg)]

@sordna,

It has passed testing and is currently waiting to be copied from -proposed to -updates.

[sordna (sordna)]

Great, I got the update and can confirm linux-image-3.0.0-14-generic fixes the problem on my C310, and should do the same for the all webcams in the earlier patch: (C200, C250, C270, C300, C310, B/C500, Pro 9000)

For other webcams like the C600, C905, the E3500 and others, people will have to wait for ubuntu kernel 3.0.0-15 (assuming will be based on official linux kernel 3.0.11 or later, which has the latest, more complete patch)

[Brad Figg (brad-figg)]

A newly released kernel fixes the problem for the original submitter (and others).

[Sergey (gansbrest)]

Same problem for me, mic doesnt work in sound settings or skype. Kernel linux-image-3.0.0-14-generic didn't fix the problem.

I've got Hercules Duplex Exchange Usb camera with built in MIC, not sure how to get the ID.

[Gilbert (yowtse)]

I can confirm that 3.0.0-14-server fixes the chipmunk sound in my case, my usb webcam is the following (using lsusb):

046d:0809 Logitech, Inc. Webcam Pro 9000

[Agent (agent-m)]

I reversed the 2 workarounds that were posted earlier, Installed 3.0.0-14-generic and can confirm that it appears to be fixed so far.
Webcam Pro 9000

[Carlos Gacimartin (cgacimartin)]

I have tested 3.014 kernel and i think it sill doesnt fix the bug for Logitech Webcam B500.

Bus 001 Device 006: ID 046d:0807 Logitech, Inc. Webcam B500

as Sergey wrote on 2011-12-13:, mic doesnt work in sound settings or skype.

[Holger Seelig (holger-seelig)]

The kernel 3.0.0-14-generic works for me :)
Webcam Pro 9000

[sordna (sordna)]

Sergey, the Hercules Dualpix webcap fix is in the 3.0.0-14 kernel, to get the ID do: lsusb on a terminal and you should see a device with ID 06f8:0804

Carlos, the B500 fix is in this kernel as well. I suspect you are having some other issue or haven't configured the applications correctly. Maybe you need to use pavucontrol and asociatiate your webcam to your applications.

[Serge Guibert (sergio-guibert)]

Same problem as Sergey: 3.0.0-14 kernel from updates and 3.0.0-15 kernel from proposed do not fix the microphone problem for Hercules Dualpix Exchange webcam.

@sordna : Indeed, the ID associated to the webcam in the patch from comment #74 is not correct:
lsusb says
ID 06f8:3005 Guillemot Corp. Hercules Dualpix Exchange

@Brad Figg : is it possible to included to fix this in kernel 3.0.0-15 before it goes to ubuntu-updates repository.

Thanks a lot

[sordna (sordna)]

Serge, you are right, looks like the patch had the ID of the Hercules Dualpix Exchange wrong as you can see here:
http://kernel.opensuse.org/cgit/kernel/commit/?id=2394d67e446bf616a0885167d5f0d397bdacfdfc

The patch says USB_DEVICE(0x06f8, 0x0804) but it should instead say USB_DEVICE(0x06f8, 0x3005)
I suggest you email the 2 people you see in the Sign-Off line of the above patch, and ask them to fix it. This should be fixed in the official Linux Kernel rather Ubuntu.

[Carlos Gacimartin (cgacimartin)]

Thanks sordna, after trying some changes in the Skype settings, now it works with the Ubuntu kernel 3.0.0-14

[Serge Guibert (sergio-guibert)]

Follows comments 110, 115 and 116.
Fix for Hercules Dualpix webcams sold after 2009 has been included in kernel 3.2.1.
The new version of quirks.c includes many fixes for new devices.

See http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=blob;f=drivers/usb/core/quirks.c;h=4c65eb6a867a1974d8596caaccc9d3d3f15152ef;hb=b8ed9e5b8c34dc9fb1882669e45b21e3d0194881

Could this new version of quiks.c file be included in next kernel update for oneiric ?
Must I open a new bug for this ?

[bwallum (rbw2)]

I've just found an excellent little web cam that works out of the box in Oneiric. 1.3Mpixel native resolution, cost £6 delivered UK.
http://www.ebay.co.uk/itm/260830581589?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

You'll need to select the web cam as microphone input in System Settings>Sound then Input tab. Works with just a USB plug, no separate microphone plug required.

[joshua pritikin (jpritikin73)]

"There are test kernels at: http://people.canonical.com/~bradf/lp843431"

Brad, I'd like to try but you do not include the non-arch specific headers. Without a full set of headers, I cannot compile my nvidia driver and I lose my audio output device.

[samaris (samaris)]

For your information, I had the same sound problem with
kernel 3.0.0.16-generic-pae
Bus 001 Device 003: ID 06f8:300c Guillemot Corp. (Hercules "Classic Silver" according to sound settings)

I tried both solutions (add a daemon.conf file and usbcore.autosuspend=-1), then update grub and restart skype and now it's fixed. Thank you.

[João Miguel Lopes Moreira (jmlm-1970)]

The only solution to make microphone work is to install linux-backports-modules-alsa-generic...

Just go to:

Menu / System / Administration / Synaptic Package Manager

And search and mark for installation:

linux-backports-modules-alsa-generic

tip: if you have multiple versions click on the first and read the description which should inform what name to install...

If after the reboot and mic mute is off, still does not work, just go to terminal and type:

sudo nano /etc/modprobe.d/alsa-base.conf

and add or change the following:

options snd-hda-intel model=auto enable=yes

Then Ctrl+X, type Y to write and exit, reboot and mic will work.

Bye and have lots of fun with Ubuntu (the best).

[squid (paul-fogel)]

thanks jmim. this last one was what worked for me (editing alsa-base.conf). microphone now works properly.

[Daniele Dellafiore (ildella)]

I had the same issue with C910 camera + mic.

I make it work using comment #123 solution, just the alsa-base.conf modification, did not install any backported module.
on 3.2.0-23-generic #36-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 12.04

I might add that in Ubuntu Sound preferences I've two input device, referring to that only device. If I keep the first selected, as in attached screenshot, it works. If I switch to the second one, it got back to the usual issue.

[GreatKir (deminkirill)]

Logitech c270 don't work in Linux 3.5 RC again. Same problem?

[Joseph Salisbury (jsalisbury)]

@GreatKir

bug 1018020 has been opened for the issue in 3.5

[Ian Cook (janostheszakacs)]

Hi!

My USB mic was working fine. It is a Zoom H2.

Then last week it went chipmonk. I tried comment 80:

gedit $HOME/.pulse/daemon.conf
and put the following line on the file:
Code:
default-sample-rate = 16000
save it, and then restart pulseaudio as a user with the following command

But got:
Could not find the file “/home/ME/.pulse/daemon.conf”

I then tried comment 93
"usbcore.autosuspend=-1"

And it made me less chipmonk, but still a bit chipmonk.

Any ideas? Why has this suddenly happened?!

[Ian Cook (janostheszakacs)]

Aha! So I don't know what went wrong. But here is a solution:

http://blog.anidear.com/2011/10/fixing-chipmunk-sound-on-skype.html

Depending on what mic you are using you might have to change the settings through the menu.

[Ian Cook (janostheszakacs)]

Scratch that, it works for a couple of minutes and then screws up.

[Jaap de Haan (jaap-dehaan)]

A hint: I switched from a USB 3.0 to one of the few USB 2.0 ports I still have... and magically the issue disappears. Can this really be related to the use of a USB 3.0 port?

[Emmanuel (ubuntu-oi)]

I all, i just run a fresh install of xubuntu 18 and the issue is still there
$ lsusb
Bus 003 Device 002: ID 046d:0809 Logitech, Inc. Webcam Pro 9000
$ uname -a
Linux MS-7756 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[Emmanuel (ubuntu-oi)]

I'm affraid it's not fixed...because i still got chipmunks on xubuntu 18 fresh install

[Emmanuel (ubuntu-oi)]

I take a look at kernel source code ad see that the patch #37 is not applied on kernel 4.15.0-20-generic

[Kai-Heng Feng (kaihengfeng)]

Emmanuel,

This quirk should apply to your webcam:
static const struct usb_device_id usb_interface_quirk_list[] = {
        /* Logitech UVC Cameras */
        { USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0),
          .driver_info = USB_QUIRK_RESET_RESUME },

        { } /* terminating entry must be last */
};

[Emmanuel (ubuntu-oi)]

Hi Kai-Heng,
Yes, you are right, but the real question is why does this disappear from the latest kernel ?
It was in the previous. So i suggest to that the bug need to be reopened in order for dev to merge from previous branch and have all "non stereo" webcam working again.
I unfortunatly can't reopen it myself (or i don't know how to do it).
Regards,

[Kai-Heng Feng (kaihengfeng)]

The quirk I pointed in #135 is in latest kernel.

[Kai-Heng Feng (kaihengfeng)]

May be a good idea to try older kernels in [0] to make sure it's a regression.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/

[Emmanuel (ubuntu-oi)]

I'll check that but if you look at
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/drivers/usb/core/quirks.c?h=v4.15.18
you can see that devices listed in #37 are not there and for me :
/* Logitech Quickcam Pro 9000 */
{ USB_DEVICE(0x046d, 0x0990), .driver_info = USB_QUIRK_RESET_RESUME },
is not there !!!
but
{ USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0), .driver_info = USB_QUIRK_RESET_RESUME },

is!!
as additional information :
- Skype is working well but arecord no, audacity neither.
- It was working fine under ubuntu 16.04 but not 18.04
I'll will go into further investigation next weekend...

[Kai-Heng Feng (kaihengfeng)]

Sounds like a regression introduced between Linux v4.4 and v4.15.
Please find the first first non-working -rc* kernel between 4.4 and 4.15 in [1].

[1] http://kernel.ubuntu.com/~kernel-ppa/mainline/

[Emmanuel (ubuntu-oi)]

Hi, due to a computer failure, i'm not able to test this right now... and i don't known when it could be possible.
I apologize for that.

[Vagabunda (vagabunda)]

Well... Same bug here - B500 cam on Mint 18.3 with 4.15 or 4.8 kernels.
But works perfectly with 4.4

Can I help somehow (as an not really "technological" person)?

[hlarsen (hlarsen)]

i'm having this issue on 18.10 as well, 4.18.0-13-generic with a Logitech C310 (046d:081b). it's been an issue since 18.04 and older for me; i can't remember when it worked without issue, but it did at some point.

it appears this commit [0] is the cause as after restoring the specific USB_QUIRK_RESET_RESUME line for my model and recompiling the kernel i cannot reproduce the squeaky-voice issue. with the standard kernel i can reliably reproduce it with Audacity by recording, stopping the recording, then starting another recording - after ~3 "correct" recordings the pitch changes.

with the recompiled kernel it appears the device is being "reset" for each recording:

usb 2-1.6: reset high-speed USB device number 4 using ehci-pci

i do not see this when using the standard 4.18.0-13-generic kernel, so i'm guessing this is what the quirk does and usb_interface_quirk_list in quirks.c isn't catching my webcam. i believe there should be a match based on the code; lsusb output includes the following Interface which looks like it matches the call (USB_VENDOR_AND_INTERFACE_INFO(0x046d, USB_CLASS_VIDEO, 1, 0)) since USB_CLASS_VIDEO is 0x0e which matches the bInterfaceClass, and subclass/protocol also match. note that this is not the first interface in the lsusb output, not sure if that matters.

Bus 002 Device 004: ID 046d:081b Logitech, Inc. Webcam C310
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 2.00
  bDeviceClass 239 Miscellaneous Device
  bDeviceSubClass 2 ?
  bDeviceProtocol 1 Interface Association
...
Interface Descriptor:
    bLength 9
    bDescriptorType 4
    bInterfaceNumber 0
    bAlternateSetting 0
    bNumEndpoints 1
    bInterfaceClass 14 Video
    bInterfaceSubClass 1 Video Control
    bInterfaceProtocol 0
    iInterface 0
...

please let me know if there is anything else i can provide to help debug this issue.

[0] https://github.com/torvalds/linux/commit/e387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0

[hlarsen (hlarsen)]

perhaps i spoke to soon - even with the kernel changes i'm able to reproduce the squeaky-voice issue.

i've also tried creating ~/.pulse/daemon.conf with default-sample-rate = 16000 which does not fix the issue.

[Ramiro de la Pe� (ramirodlp)]

I have had this issue with my C270 on Windows and now on Ubuntu 20.04. So it's mainly a Logitech issue, but on Windows I fixed it by fixing the mic on 16000 hz. On Ubuntu I tried chaging etc/pulse/daemon.conf to ; default-sample-rate = 16000
; alternate-sample-rate = 16000
and it did not work. Only for a little while.

[Evgeny Kuznetsov (nekr0z)]

Looks like there's a way to set the sample rate for a particular device explicitly, and that's what is called for in this case:
https://evgenykuznetsov.org/en/posts/2020/webcam-sound/