Progressive Synch Probs

[fiiido]

I use VirtualDub to extract the wav from an avi file. I compare the lengths and there is about a 20secs difference, sound wav is shorter. I have used both Sound Forge and Goldwave to stretch the wav file. The divx avi and wav are now the same lengths..........But, when I use TMPGEnc to create an MPG there is still a delay. I have selected the stretched wav file in TMPGEnc and tried all the basic things.

Any help......... pleeasee

fiiido

[pijetro]

Okay, I'm assuming you've got a Divx movie as your source, and I can also assume that you don't get a message of improper VBR audio when you load the Divx into Vdub. Next, check the File Information at the top left. Is your audio 41khz, or 48khz. If you're creating a VCD or SVCD, then you want 41khz. If you're creating DVD's then you want 48khz. If you need to change your samplerate from 41-48, or vice versa, then go to audio>full processing, and again, go to audio>conversion, (make it stereo, and 16bit) pick your samplerate, then go to audio>compression>PCM(uncompressed), . Save wav.

This is the first step. What I do to make double sure that everything is okay, is save the video only by clicking audio>no audio, video>direct stream copy, and you've created a silent .avi.
Reopen Vdub and open your silent .avi. Go to audio>wav, pick the newly corrected wav source, and Save as d:\blahblah.avi. Now you've hopefully created a correct Divx, that's VCD or DVD ready..

Playback this video. If everything is okely dokely, then encode to Tmpgenc..

Good luck......

[fiiido]

If I do get a VBR error when loading into the avi into Vdub I normally extract the wav and then encode to 44.1. This gives a wav file that is shorter than the audio.

Shall I stretch this wav file to the avi length or use the original wav file when recombining into the silent avi?

or can just use the silent avi and the streched wav in TMPGEnc?

[fiiido]

also when I recombine the avi is huge. Can it be saved as DivX size?

[pijetro]

If you want, you can use that audio as the .wav source for Tmpgenc, and use the silent .avi as the video source. Like I said earlier, remerging the two into a new Divx, ensures sync before being fed to Tmpgenc.
As far as filesize goes, it shouldn't be an issue. If your original was Divx, then you're just copying the video stream via Direct Stream Copy. A Divx of 800mb should give you a good quality film...I must be missing something..

BTW, you don't need to encode to 44.1. If you properly convert and recompress your audio thru Vdub, as mentioned earlier your newly saved .wav should be ready to run through Tmpgenc, along with the vid. I personally remerge the two just for peace of mind.

Don't worry 'bout the display time