[mythtv] Jittery sound - ALSA / AC97
Thu, 26 Dec 2002 14:18:25 -0500 (EST)
Try lowering the volume on the PCM. On my SBLive, if I have PCM all the
way up I get ticking, and chirping noises. Lowering it to 75-85 helped.
> MythTV 0.7
> Mandrake 9.0
> AMD Athlon 1600+, 512MB
> on-board VIA 8233 (AC97) sound
> ALSA 0.9
> ATI TV Wonder (TV/Video in), ATI AIW Radeon (Video only)
> External connection between the TV Wonder line-out and the AC97 line-in
> XawTV works fine.
> In MythTV, the sound is very jittery (loud ticking / interference noise over
> the sound) when I select line-in as the recording source, mute line-in, PCM
> 100%, igain 100%. Alsamixer shows a red "capture" above the capture bar.
> If I mute PCM and un-mute line-in, the sound is fine, but of course then the
> sound is not synchronized with the video.
> From /etc/modules.conf:
> # On-board sound
> above snd-via8233 snd-pcm-oss
> alias sound-slot-0 snd-via8233
> Any ideas? Can't seem to find anything relevant in the mailing list archives.
> mythtv-dev mailing list
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