[mythtv-users] Audio lags behind video when skipping SD

[greg]

Chris Vargas wrote:
> I'm using a BioStar motherboard with onboard Nvidia GeForce 7025 video, AMD Athlon 64 X2 Dual-Core BE-2350 2.1 GHz CPU, 2GB RAM, out to a 1080p TV set. I've had this performance problem but am only now getting around to asking about it.
>
> When skipping through HD recordings, everything performs fine.
>
> However, when skipping through SD recordings (made with a PVR-150, 720x480, 4Mbps) the sound lags behind the skipped video. It gradually catches up but takes a second or two, particularly if doing multiple skips. It even lags when I quit out of a recording: video stops, sound continues for a second, then I get the MythTV menu. This is with a digital audio connection to a receiver, by the way, via an external USB adapter.
>
> I'm using a CPU++ playback profile. I've tried adjusting the various audio options (extra audio buffering, etc) with no apparent effect. I think I've tried CPU+ and that hasn't helped.
>
> Thanks for any leads.
>
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>   
I had a similar problem i tracked it down to pulseaudio...I removed 
pulseaudio and the problem went away...YMMV :)
  I also think slim is the most common profile profile that is 
suggested...Try that out...