Differences in bitrate affecting sync

[Intuit]

Does anyone know if differences in bitrate will affect the audio synch with the video? I have a movie that is avi that looks and sounds perfect all the way through, but for some reason my sync is off when I burn. Is this hard to correct? Will changing my audio bitrate help?

[junkmalle]

You didn't mention what software you're using to convert AVI to MPG for burning to DVD. But many of the programs have trouble with variable bitrate MPEG audio in AVI files. Try extracting the audio as a WAV file then using that WAV file as the audio in your conversion software.

[Intuit]

I use canopus procoder 1.5. I use to save the .wav using vdub and then convert with besweet. I now have started just using the .wav file that came from the conversion using canopus and converting it in ffmpeg. What exactly does changing the audio bitrate do?

[junkmalle]

A higher audio bitrate results in better quality audio. It doesn't effect the A/V sync -- except that some programs don't handle variable bitrate audio correctly.

[daamon]

In general, bitrate is linked with quality (either audio or video). The higher the bitrate, the more info is used and so the better the end product.

It's worth saying that you can't go beyond the original level of quality - see GIGO in the Glossary.

If you're getting sync problems, it's something else - Use either GSpot or AVICodec to get audio and video details on the source AVI and post them here.