A partial workaround which doesn't completely fix the issue but improves things is the following:
Adding to /etc/pulse/default.pa, use_ucm=0 tsched=0 right after module- udev-detect and /etc/pulse/daemon resample-method = src-sinc-best-quality default-sample-format = s16le default-fragment-size-msec=80 default-sample-rate = 48000 Don't know which what specific parameter improved this, because when I test each one of those singularly doesn't totally fix the problem. The best results I can obtain are with all those combined -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1801540 Title: Microphone distorted sound on ALC892 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Status in pulseaudio package in Ubuntu: Confirmed Bug description: Not sure if I'll report this upstream but there is definitely an issue with microphone recording on my desktop, this is not happening on my laptop which has a different codec. Already tried all workarounds possible, no luck. Only with my desktop with this particular motherboard. No issues in Windows, the sound recorded in there is distorted and has some static and robotic tone on high-pitch. alsa-info on the attachments To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1801540/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp