(In reply to Takashi Iwai from comment #172)
> Thanks.  The problem with playback indicates that the delay correction isn't
> good for playback but only for capture.
> 
> Below is yet another revised patch.  It corrects the position report only
> for the capture, but takes the FIFO delay into account, too.

With tsched=0, everything is perfect. When tsched=0 is removed, the
audio output is not crackling again, however ALL audio is retarded when
the acquisition starts, to me it feels around 4/5 seconds. I had a
player playing music in background and the whole stream jump back for
that time; if i try to seek in another position the audio will seek only
after the same 4/5 seconds. If I stop capturing audio, the playback sync
back again and the playback is working correctly again.

Very weird.

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https://bugs.launchpad.net/bugs/1801540

Title:
  Microphone distorted sound on ALC892/1220 on AMD chipsets

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Won't Fix
Status in pulseaudio package in Ubuntu:
  Won't Fix

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

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