[mythtv-users] Audio Sync when exporting to DVD using Nuvexport

[Charles Barnwell]

Gary,

I am seeing similar problems myself.  I am using a Hauppage Nova/T dvb 
card, so the .nuv files are pretty much straight MPEG2 files.  I use 
either dvb-mplex or replex to re-multiplex them and then dvdauthor to 
create the DVD structure.  I find that dvdauthor complains about 
incosistencies in the audio, and sure enough the audio and video get out 
of sync as you go through the dvd.

I have found that BBC channels work OK, but that ITV and Channel 4 
don't.   I haven't done extensive testing on this, so it might just be a 
coincidence.  One thing I have noticed is that replex reports:
 
Wrong audio frame size: 1072
Wrong audio frame size: 656

For ITV channels.  Could that be related?  Have you tried doing this for 
BBC?  And are you using a digital or analog card?

Charles Barnwell

Gary Dawes wrote:

>Having finally treat myself to a DVD burner for christmas, I have
>started exporting shows to DVD, but have found that the audio is ahead
>of the video by a small amount.
>
>I have searched the various wikis, and mailing lists, and have found
>various posts about this, but while different people have suggested
>different things, none of them have worked for me, and noone else with
>the problem has reported that they have solved the problem, and by what
>method.
>
>I'm running knoppmyth, with mythtv 0.16, and the latest versions of
>transcode mjpegtools available from apt. I'm also running the latest
>nuvexport (27/12).
>
>I've checked my audio recording settings and they are at 48khz
>
>I found one snippit of information which suggested running mpeg2desc -m
>on the .mpg file to determine the audio offset, and then using that
>information to reencode the file.
>
>Any ideas?
>
>Thanks
>
>Gary
>
>  
>
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