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Unofficial VirtualDub Support Forums > Testing / Bug Reports > Truncated Audio In Extremely Long Avi


Posted by: DrP May 9 2003, 09:29 PM
Don't know if this is a problem with VDub or somewhere inside Windows, but...

I am making extremely long captures (over 8 hours) and then editing out the desired bits. When I do capture to a single giant file (ie opendml format) and then open the file with vdub, vdub reports too few audio samples. I am capturing with virtualvcr as my capture hardware only supports full res with WDM (otherwise I would use virtualdubmod). If I do a half res segmented capture with vdub, the audio is ok for the entire 8 or 9 hours. It seems to be a counter rollover type of problem. I can play the file all the way through with a directshow app and the audio is present for the entire file.

I can extract up to 4Gb of the audio (PCM 44k 16bit) using graphedit (this is on NTFS, so graphedit has a problem with > 4Gb files?).

Posted by: DrP May 10 2003, 08:01 PM
Well, since no one else has answered, I'll add what I found. It seems there is a 4Gb size limit on audio in lots of apps. Virtualdub, winamp2 etc. If I keep the audio part under 4Gb, I can edit it. Seems that DS apps are more capable in this respect.

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