[mythtv-users] no sound after transcoding to MPEG4

[Joseph A. Caputo]

Joachim Gehweiler wrote:

> Hi all,
> 
> I am using mythTV with an Hauppauge PVR-250 in Germany (PAL-B/G); I am 
> running RedHat 9 on my machine and installed mythTV, IVTV and LIRC as 
> suggested in
> 
> http://pvrhw.goldfish.org/tiki-page.php?pageName=rh9pvr250
> 
> 
> [ I even got the EPG to work in Germany with tvmoviefetch, available at
> 
> http://www.bucksch.com/1/projects/various/xmltv/
> 
> and some manual modifications to the channel MySQL-table ]
> 
> 
> Nearly everything is working fine, but there is still some big problem 
> left: If I record some TV show, I can watch it as long as I did NOT 
> transcode it, that means everything is ok with the original recording 
> (video as Hardware MJPEG; sound as MP3 or uncompressed). But after 
> transcoding to MPEG4, the video is ok, but there is no sound! I tried 
> various combinations of the MPEG4 settings and the audio settings, but 
> in all cases the sound was missing.
> 
> 
> [ Some time ago (April 2003), someone had a similar problem (except he 
> was using RTJPEG instead of Hardware MJPEG), but there was no reply to 
> that post

If you have your recording profile set as 'Hardware MJPEG', that might 
be part of your problem.  The PVR-250 is a Hardware MPEG (*not* MJPEG) 
encoder.  The codec is MPEG-2.  It sounds like you have the card 
configured properly (or you wouldn't be getting good recordings), but if 
you've mis-configured your recording profiles, it might explain why your 
transcodings are screwed up.

-JAC

> 
> http://www.gossamer-threads.com/archive/MythTV_C2/Users_F11/Transcoding_from_250_source_files_P76286/ 
> 
> 
> Has this problem been solved outside the mailing list in the meantime? ]
> 
> 
> Has anyone any ideas what is going wrong and how to correct it?
> 
> Best,
>   Joachim