Seems to be the same problem as https://bugzilla.kernel.org/show_bug.cgi?id=195303 With ALC1220 codecs
The last comment was "I might have found the source of this problem at least for me. A while ago I set my Pulseaudio sample rate to 44100 to reduce crackling in my virtual machine audio but the sound card on my board runs at 48000. What I did: arecord --list-devices arecord -f dat -r 60000 -D hw:CARDIDHERE,DEVICEIDHERE -d 5 test.wav arecord told me that it could not record of a rate of 60000 and instead got 48000. This means my card has a sample rate of 48000 So I ran: arecord -f dat -r 48000 -D hw:1,0 -d 5 test.wav And suddenly I had a clear recording! The only problem is I have changed my sampling rate and alternate sample rate in /etc/pulse/daemon.conf back to 48000 but it still seems to be defaulting to 44100 in all programs. If I run: arecord -f cd -d 10 test-mic.wav I observe it defaulting to 44100 and playing it back sounds awful again. Same with any other recording software, they are all still using 44100 for some reason which is causing the crackling." This also applies to me, is there a temporary workaround for that I can apply to ALSA or Pulseaudio? ** Bug watch added: Linux Kernel Bug Tracker #195303 https://bugzilla.kernel.org/show_bug.cgi?id=195303 -- 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
