HD-PVR Audio Drift - Quality Settings

[jsonnabend]

I have slight audio drift using the 1.5.6 drivers. The audio is off noticeably after 2 or so hours. I read somewhere that the encoder settings might affect this.

I'm wondering, for those having no audio drift/sync issues, what settings do you have? They can be found using the ArcSoft capture module, clicking on "Format Settings".

Mine are presently at:
7.6 Mbps constant bitrate
AC3 decoder

That's a bit lower bitrate than before, so I will have to see if that seems to affect the audio drift issue.

- Jeff

[HelenWeathers]

I don't get audio drift with the 1.5.6 Haup drivers. TME reports my settings as 12.0 Mbps constant bitrate w AC3 decoder.

My SageTV recording quality is set at Best H264.

When I set TME to other values (ie 13.5 constant), SageTV seems to reset the bitrate when it accesses the HD PVR for recording/watching back to the 12.0 (Best H264).

EDIT: I'm curious - are you running at 720p or 1080i? I run at 720p fixed output from my STB.

[jsonnabend]

720p.

Are you using stereo RCA's (like me) or digital?

[HelenWeathers]

Originally Posted by jsonnabend

720p.

Are you using stereo RCA's (like me) or digital?

Digital - It's always worked well from my DirecTV receiver.

[MattHelm]

Originally Posted by jsonnabend

I have slight audio drift using the 1.5.6 drivers. The audio is off noticeably after 2 or so hours. I read somewhere that the encoder settings might affect this.

I'm wondering, for those having no audio drift/sync issues, what settings do you have? They can be found using the ArcSoft capture module, clicking on "Format Settings".

Mine are presently at:
7.6 Mbps constant bitrate
AC3 decoder

That's a bit lower bitrate than before, so I will have to see if that seems to affect the audio drift issue.

- Jeff

I'm having the same problem. Can't see the ArcSoft settings, as I only installed the driver on the recording machine, and the OLD ArcSoft software won't run on Windoze 7 x64. If I update, I loose the codec. PITA In SageTV, I have the Video set to 3.8GB/hr. Also, I'm currently only recording SD content.

Ran the file thru tsMuxer, which seems to help.

[fidget]

I had a noticeable drift after less than 15 minutes. Downgrading to 1.0.5.301 seems to have fixed the audio drift problems.

The drift was definitely in the file, since starting in the middle of the recording had the drift (i.e., it was dependent on the position in the file, not how long it had been played).

[JMTBerserker]

jsonnabend - Did you resolve this? I'm having the same problem.

[jsonnabend]

Originally Posted by JMTBerserker

jsonnabend - Did you resolve this? I'm having the same problem.

I haven't had the problem again. I believe I had downgraded to the install disk drivers. I'm also using the beta native recording patch (at least on the playback side). See this thread for more info.

- Jeff

[JMTBerserker]

I tried installing the "native patch" (whatever that is), and it errors out when I try to run the batch file.

Seems like I remember installing the latest Hauppauge driver at some point, but I guess I uninstalled it because device manager says i'm on driver 1.0.5.301 now for both my HD-PVRs. Still having a bad audio drift problem with that driver.