Problems with audio in my DivX movie

[justified]

I downloaded a movie and tried to 1, break it into 2 using Virtual Dub, and 2, using the source range in TMPG to encode 2 separate parts.

None of them worked. In TMPG the audio doesn't show up at all, and in Virtual Dub, I get this error:

VirtualDub has detected an improper VBR audio encoding in the source AVI file and will rewrite the audio header with standard CBR values during processing for better compatibility. This may introduce up to 865819 ms of skew from the video stream. If this is unacceptable, decompress the *entire* audio stram to an uncompressed WAV file and recompress with a constant bitrate encoder. (bitrate: 169.8 [plusminus sign] 17447.8kbps)

I don't get what that means?

Up to a certain frame, the audio does work. I encoded the video up to that part, and it works fine. If I try to play the rest in Virtual Dub I just get an error. If I try to break that part into a new AVI file I get an error. I did, however, encode the erroroneous part to a new AVI file with video only, but I guess that won't help much.

[banjazzer]

Load avi in Virtualdub. Select Audio>>Full processing mode. Select File>>Save wav. This will save a (large) uncompressed wav file. Use this to input to TMPGenc for the audio.

[gdi-shooter]

adding on to banjazzer....

use your orignal avi as video source, and the new wav as audio source.

NOTE... this way will NOT work if you DONT get the pop up message about "VBR" encoding.

So banjazzer... my other movies DO NOT have the VBR encoding, so how will I convert it to mpg??? come on banjazzer... help me out!

[banjazzer]

Whether avi has VBR or CBR makes no difference, provided you extract the uncompressed wav. This is my experinec, most of the time. I come across both types - although increasingly VBR audio. The only avi I can guarantee give me no sync probs when I use the avi as audio source are my own. 8)

[spidey]

All you need to know is right here:

http://www.vcdhelp.com/divxtovcd.htm

[justified]

I tried various ways of encoding the audio from the source file but I always get the same error:

Audio samples 68390016-68403743 could not be read in the source. This file may be corrupted.

[gdi-shooter]

sipdey, wtf man... i already said that shit doesnt work!!!
that method ONLY WORKS FOR VBR!!! (i dont even know what CBR means)

[banjazzer]

It works for everybody else apart from you!!! CBR means constant bitrate. VBR means variable bitrate. TMPGenc' handles VBR badly hence the need to go to uncompressed wav. It can handle CBR compression, but there is no disadvantage to ALWAYS decompress the audio. This works for all the rest of us mere mortals. YMMV. 8)

[gdi-shooter]

ok so ban... if i udnerstand u right.. there r only 2 types of audio...
VBR and CBR... right??

and VBR has no audio for me when i make it WAV and use original avi as video, new wav as audio (full poriocccessing)

so with CBR, I just do the EXACT same thing?? (extract 2 wav using full, use wav as audio, avi as video.. make mpg) If u asnwered yes... MY WAV COEMS OUT 7 seconds shorter and this wehn covnerted gives me probs!!!!!!!!!!!! banjazzer, do u have msn or icq? (lot ezer to chat thru there)

[banjazzer]

I do have ICQ somewhere, but I've not used it for years, and it's not on this machine. Mainly I use usenet, which is much faster and more direct than forums. Also, the best DivX is out there. 8)

Anything which is not VBR is CBR, but there are a hell of a lot of different audio options, beside the mp3 which I think we are talking about. Just wait till you come across ac3 and ogg 8) 8) To make sure we are talking about the same thing, load the avi into Vdub and check the file info. It will say if audio is mp3. Now, all mp3, VBR and CBR, responds to extracting as uncompressed wav - at least for me.

I have never ever experienced problems this way. The wav is always the exact same length as the avi, whether or not I downsample 48000 to 44100. Is there any chance you can use direct stream copy to sample out a bit and post to alt.binaries.test? Then I can see first hand what the problem is.

Also, a real longshot, but why not get fresh copies of TMPGenc and Vdub?

[gdi-shooter]

my orignal avi is in 25.00 FPS.... would this be causing the problem???
i have latest vdub, but i was told NOT to get latest tmpgenc since it messes shit up purposely due to copyright. I dont use usenet, so can u get icq?

http://www.icq.com (free)
thanks

[banjazzer]

I don't think the framerate is a consideration. I convert many avis - 25fps, 29.97fps and 23.97fps - all with no problem. The only time I experience problems is when there is a fault with the original avi. I am using latest Vdub and latest TMPGenc. I don't think there is any problem with TMPGenc. The SVCD functions expire after 30 days, unless you live in the future but the time between new versions being produced and new cracks appearing is so short I don't think the protection is very strong. And I have never heard of any nasties in the prog for those who are reluctant to pay. 8) I just don't think it is so.

I don't want to install ICQ again because it is too bloated IMO, and I have enough going on already on my PC. Whilst I write this I am downloading DivX from usenet at 60 kB/sec. I would urge you to look at usenet. The quality of files there is far greater than Edonkey etc. And communication is far quicker than with forums. 8)

[gdi-shooter]

WELL how do I do it then??????

show me step by step.... cuz it works for VBR, not "CBR"

[justified]

It works for everybody else apart from you!!! CBR means constant bitrate. VBR means variable bitrate. TMPGenc' handles VBR badly hence the need to go to uncompressed wav. It can handle CBR compression, but there is no disadvantage to ALWAYS decompress the audio. This works for all the rest of us mere mortals. YMMV. 8)

So what's wrong with mine?

[justified]

Did my message up there ^^ mean that the original file was VBR, and then Virtual Dub changed it to CBR? In that case what do I do? And howcome I keep getting that error when I try to encode the erroroneous part?

[gdi-shooter]

ok... vbr is when u get the POPUP msg in your avi... which is fixable

CBR is when you DONT get a popup msg in your avi.. which so far, is UNFIXABLE (believe me... ive been trying for 6 months)!!

to fix vbr... extract audio as seperate wav file....

and like I said, CBR is UNFIXABLE.... or everyone here who read my post (over 1500 people) dont know how to fix it...

[justified]

ok... vbr is when u get the POPUP msg in your avi... which is fixable

CBR is when you DONT get a popup msg in your avi.. which so far, is UNFIXABLE (believe me... ive been trying for 6 months)!!

to fix vbr... extract audio as seperate wav file....

and like I said, CBR is UNFIXABLE.... or everyone here who read my post (over 1500 people) dont know how to fix it...

So mine is VBR I guess, plus I do get a pop up.

But I tried the above methods and it still didn't work?

[banjazzer]

Well, now I'm totally confused. 8) When i get VBR I choose full processing and save an uncompressed wav. I thought I did the same when the audio was not VBR, but it's been a while, and most everything I come across now is VBR. But, when I convert my own DivX (which is CBR) I don't bother. I just use the avi as audio and video inputs - and it works just dandy. So, that's all I know - is all I know. 8)