error message...

[chakotay2]

I often get the following error when opening a file in VirtualDub:

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 3303ms of skew from the video stream. If this is unacceptable, decompress the *entire* audio stream to an uncompressed WAV file and recompress with a constant bitrate encoder. (bitrate: 181.8 += 19.4 kbps)

Can anyone tell me what this means? And what I should do? I have found with files like this I get audio problems after converting them to mpgs with TMPGE. Please help.

THANKS!

[setarip]

That's the message you get when the audio was encoded as Variable Bit Rate (VBR) .MP3 rather than the more conventional Constant Bit Rate (CBR) .MP3. TMPGEnc cannot handle VBR.

Do the following, in order to convert .AVIs with VBR-MP3 Audio

Simply use VirtualDub to save the audio stream as an Uncompressed PCM (WAV) file as follows:
Load your original .AVI into VirtualDub
From the "File" dropdown menu, select "Save WAV" (Enter a new filename with a ".WAV" extender).Click on "OK"
Then set "Video" to "Direct Stream Copying"
Then save the .AVI as a silent .AVI (set "Audio" to "No audio" after you've saved the WAV file).

Then close VirtualDub and restart it
Set "Audio" to "No audio"
Load your silent .AVI
Set "Video" to "Direct Stream Copying"
Under "Audio" click on "WAV Audio" and load your .WAV
Set "Audio" to "Full Processing Mode"
From the "Audio" dropdown menu, select "Compression" and choose the appropriate .MP3 settings. Click on "OK"
From the "File" dropdown menu, select "Save as AVI" and save your file with a new filename.

[chakotay2]

thanks

I'll try it. Thanks for the suggestion.