Hi there!
I am running Ubuntu 14.04.5 on kernel 4.4.0-38-generic.
My microphone has odd buzzing and almost electronic noises, along with crackiling. This occurs with both ALSA and PulseAudio, although using gstreamer-properties shows me that ALSA sounds significantly better, albeit still awful. The problem isn't reproducible on my laptop that has Windows 7 on it; absolute clear crisp sound. One thing that seems to be an issue is that on Ubuntu my microphone volume is extremely loud, regardless of what setting I put on alsamixer or pavucontrol. I can get quiet, but the crackiling and distortions keep with it almost as if the sounds were happening in real life.
Solutions I have attempted:
- Changing the rate at which PulseAudio was recording. (Was 44100, changed to 48000) Nothing.
- Turned "tsched" to zero in my /etc/pulse/default.pa. Nothing.
- Have clean ports, both front and back audio ports. (I replaced my motherboard, but not for this reason, and both motherboards produce the same sound, which points to a software problem.)
- Messed around with "positioning" with PulseAudio. Nope.
- Used pavucontrol and alsamixer to disable or turn down one of the two channels, but both channels produce the bad noise.
- Completely changed microphones, but both have the issue.
- Enabled the noise-cancellation module in PulseAudio, which did nothing.
I'm really out of options, and having clear microphone audio is super important to me. I would hate to have to switch back to Windows because of such a silly issue, but ALSA and PulseAudio are messing with it so badly that no fix that I've found online have worked.
Any help is appreciated in advance. Thanks!
