RMVB audio stretch problem, please help!

[meow76]

Hi,
I have a whole bunch of rmvb files and I have tried several video converters to convert them to divx or xvid but I always get an audiostretching issue i.e. sound synch is fine at the beginning but by the end it is out of synch by a noticable amount.

If anyone can suggest a conversion technique that can overcome this I would really appreciate it.

Thanks

[foxyshadis]

Most of these tools are probably using avisynth incorrectly. You should make sure you have the latest avisynth 2.5.7, open notepad, and insert this line:

DirectShowSource("sample.rmvb",fps=....,convertfps=true)

Where .... is the framerate you want (usually 23.976, but it could be anything if it's not from a film). Then load that into one of the converters, or even a encoding tool like virtualdub or megui.

The audio is probably fine, but most likely the video is VFR with near-dupes chopped out by the RM encoder, so there are less frames in the output than the input. With convertfps, avisynth can recreate them.

[meow76]

Thanks for that i will give it a shot

[meow76]

... and unfortunately I still have the problem. In fact, the audio stretching is worse with this method than with the commercial rmvb -> avi converters.

Is there some missing step?? This is driving me nuts

Thanks

[lisa_8023]

Have you checked source file? Did it ook?
Have you tried winavi (http://www.winavi.com/rm-converter.htm) to convert?