MainConcept will not finish encoding my project!!!

[dqdude]

I'm trying ot encode a 950mb avi to VCD. Mainconcept works fine until the last 4000 frames or so. Basically it goes fine for the 1st hour or so...then the last 4-5 minutes it stops encoding.

I usually use TMPGEnc for encoding but I have grown tired of having to extract the wav file 1st. Inevitably the sound is off and I have to spend countless time matching the audio to the video.


Now I don't know what to do. Of note...I was able to split the avi into 2 equal parts with avi splitter and Mainconcept worked fine. However avi splitter matched the audio and video perfectly on the 1st part but the 2nd part was at least 2 sec off.

This is all very frustrating!!!

[jtommyj]

Have you run the .avi file through VDub and checked for errors ?

[dqdude]

Have you run the .avi file through VDub and checked for errors ?

I just did that...I got an error:

VirtualDub has detected an improper VBR audio encoding in the source avi file and will rewrite the audio header with standard CBR values...This may introduce up to 12796 ms of skew. If unaccetable, decompress the *entire* audio stream to an uncompressed WAV file and recompress with a nconstant bitrate encoder. (bitrate: 82.0 +9.9kbps)

I have extracted the audio to a WAV file and used that in TMPGE but i get audio skew. So If I read this right...I need to take my WAV file and recompress with a constatnt bitrate encoder. I'm not sure how to do this.

[Bright1]

Just read about your problem. I've encountered it too.

The best thing to do (the way I do it anyway) is to load the complete avi into VirtualDub base version or mod and accept VDubs warning.

1) Demux/extract the audio using direct stream copy to a separate file. I think the audio will be an mp3 file with a wave header.

2) Demux/extract the video using direct stream copy to create a video stream only avi.

3) Start NERO burning rom (if you've got it) and choose encode files, load the mp3-wav (90mb approx) audio file into it and decompress it to a normal wave file (900mb approx)

Thats about it really. You should have two new files, a Video only file and a fully decompressed audio file.
From what I know about a/v synch problems, if your source is PAL the audio have a delay of -80ms +/- 9 approx (the audio starts before the video)
If the source is NTSC the delay should be around the same, but can be upto -100ms out of synch.

At this point i'd advise you to use TMpegEnc to encode and set the delay in SOURCE RANGE OPTION to the INVERSE of the delay (-80 = 80 / -100 = 100ms). You can play around with delay until it looks synched.

Hope this helps, reply back if you're still stuck.

B1.