No audio when cutting with virtual dub

[meneermalik]

I'm just useless today, cant seem to make any editing work. My avi file is too big for my cd, so I tried using one of the guides on how to cut avi's with virtualdub, I did it yesterday and it worked fine. As for today, any file I cut and do 'save as' comes out with no audio at all. What could the problem be. Thanks to anyone that helps me.

[Cobra]

Check in the Audio menu, and ensure it has "Source audio" selected and not "No audio".

[meneermalik]

I have virtualdub 1.3, under the audio menu I have..'no audio', 'avi audio', and ' wav audio'. It's always set at avi.

[jimmalenko]

Start with the obvious ...

Did you turn your speakers on today ?
When you play the file on your PC, does it have sound ?
Load the AVI, then go to Audio > Full Processing then go to File > Save WAV. Do you get sound from the WAV File ?

[meneermalik]

Yep, speakers are on. I tried the file before and after and it had sound before and no sound after. I got the wav from the avi and that plays fine.

[jimmalenko]

OK, how about opening virtualdub, loading your AVI, then going to Audio > WAV Audio and then specifying this WAV you created ?

(I'd suggest setting a range and just encode a minute or so of the footage to test it)

[meneermalik]

If I load the avi after I got it with the original wav, I'll end up with an audio file that wont fit the size. My original audio is about 150 megs of a 700 meg file. After I cut .5% of the file, the Wav I got from the cut avi is only 30megs? I think I'm losing the audio somewhere in the cutting and or saving of the new cut avi.

[meneermalik]

alright, I got it figured out. I got virtualdub 1.5 (i was using 1.3) and everything seems to have fixed itself. And one of the files I had a lot of problems with in 1.3 started with an error message for the audio in 1.5. Saying that it was VBR audio and I needed to get the wav out of the video and recompress it to a constant bit rate. I did that and I had no problems cutting it after. Thanks for all the help.