When I record a Sound from my Logitech Webcam the Voice is like a "Mickey Mouse" - in "Cheese" the recorded Video are ok! Please help me! I have the Problem with Ubuntu 18.04 and the same in Kubuntu 18.04! Thanks very much!
Greetings, Claus Gronald
The problem is same ancient as Ubuntu. It has the name "Logitech webcam microphone chipmunk sound". Looks like the problem has resurrected with Ubuntu 18.04 with its 4.15 kernel.
The well-known old workaround for the bug "Logitech camera microphone makes "chipmunk" sound" has worked for my Logitech C270 webcam like a charm.
You have to disable USB autosuspend at kernel boot parameters. Open
/etc/default/grub file with a text editor, let it be
nano for instance:
sudo nano /etc/default/grub
and find there line with
usbcore.autosuspend=-1 to kernel parameters, i.e. replace the line
with this one
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"
Save changes and apply it to your system with grub update:
Reboot your computer and the chipmunk (Mickey Mouse) sound problem has to dissappear.
Doing this worked for me:
mkdir $HOME/.pulse/ echo "default-sample-rate = 16000" >> $HOME/.pulse/daemon.conf pulseaudio --kill && pulseaudio --start
Then I also restarted computer.
Reference: Logitech C310 audio problems