very long audio goes silent

[DrP]

I've found a solution to this problem a while ago, but I can't remember what it was. Using avisynth to pull audio out of a very long AVI (6 hour type 2 dv) file cuts the audio off eventually with silence filling out the rest of the audio past what I suspect is the rollover point for a 32 bit pointer. Recent builds of virtualdub produce the expected audio with the very large avi file is opened directly.

Searching hasn't been too successful since the board won't search '32' since its only two characters long.

Can anyone offer a solution to my problem? I know that cutting the source file into seperate 2Gb files and then using avisynth to stich it back together will work, but its a real PITA to do with a 119Gb file!

[Guest]

You can use Google to do your search by putting this after the search string:

site:forum.doom9.org

E.g.:

32 long audio site:forum.doom9.org

[squid_80]

Do you open the file using AVISource or WAVSource?

[sh0dan]

You could try sticking in SoundOut (http://forum.doom9.org/showthread.php?t=120025), and see if the length matches your source, if so it's an output problem (AVI only supports 2^31 samples). If it is correct, you could output the sound separately.

If you get wrong length in SoundOut, you might try opening the audio another way (DirectshowSource, FfmpegSource, etc).