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Old 8th March 2002, 17:56   #1  |  Link
abyss
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24fps instead of 23.976fps

When I previewed the video (The Matrix NTSC) the frame rate display gave me
a)frame rate: 29.976 fps (when Video/Field Operation = None)
Video type: Film 99%

b)frame rate: 24fps (when Video/Field Operation = Forced FILM)

But I get audio desynch when Frame rate=24fps. If frame rate were 23.976fps, audio (AC3) and video streams would be synchronized. Frame rate change in Nandub makes film a little jerky, so I had to use IVTC in TMPGEnc, which solves my problem and makes 23.976fps. My question is there any possibility to force DVD2AVI change frame rate to 23.976 and avoid using TMPGEnc to solve such fps problem?
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Old 8th March 2002, 21:24   #2  |  Link
Trahald
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hmm.. a 29.97 stream in dvd2avi with the force film option on should give you 23.976... only a 30 fps stream should render a 24 fps result on force film

having said that.. if you use avisynth and set your script with


assumeFPS(23.976)

that will drop it down to 23.976 (all assume fps does is slow the frames the % it takes to get it down to 23.976) and that should get your audio back in line

there are avisynth guides on this site (see svcd creation using dvd2avi) for how to get it to deal with mpeg2... and nandub will load the .avs
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Old 10th March 2002, 09:40   #3  |  Link
abyss
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Thanks,w00kiee, for your help. Another member of this forum, trbarry, suggested, that I'm using such a version of D2A, which incorectly sets frame rate, when FORCED FILM=ON. And indeed, when looked at my D2A ver., it was 1.76 modified to 1.85 ver. by Gloval, and which includes on the fly mp3 compresion. Then I ran original 1.76 D2A ver. and that stupid 24fps problem was gone. Now I see perfect 23.976 frame rate when FORCED FILM=ON. Thanks, buddy
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Old 11th March 2002, 11:42   #4  |  Link
mikehg
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You can also just load the d2v file in a text editor snd manually change the 24000 to 23976 and all will be fine.

Mike H.
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