Blu-Ray to WMV and Audio Delay

[jntaylor63]

I am starting out preforming these types of rips. I understand that there are sometimes delays in the Dolby and/or DTS audio files.

Should / how do I correct this? Should I correct before converting the audio first before converting to wma?

[GeeForce11]

I've never had a problem with audio sync while using TSmuxeR, but try to demux and convert the audio streams from m2ts with eac3to which is supposed to be better to avoid any audio sync issues that might happen.

[jntaylor63]

Ok, so does TSmuxer or eac3to display if the audio has a delay? My main concern is that when I demux it and convert to WMA, it might be out of sync why I mux it back into the WMV video I converted.

[GeeForce11]

Eac3to handles any delays etc. automatically when you extract & encode from m2ts. Could read the details here:
http://forum.doom9.org/showthread.php?t=125966

Edit: Sync problems could also happen because of improper video stream encoding, not necessarily because of audio stream demuxing/encoding. Try eac3to and if still have sync issues, look into the video part...

[KlintIstwood]

I have also frequently faced the same problem and after some try and error time, I understood that the problem was coming from the video frame rate. My re-encoding software was setting 25 fps by default while the movie was using something like 28.97fps. Setting fps to 25 will add almost 2 frames per second but will use the same audio file. The immediate consequence is that the audio goes completely out of sync after a few minutes. So depending on what you are using to re-encode your files, you should check if your software allows to set manually fps.