pal > ntsc with 5.1 sound

[eagles]

iam trying to convert a ac3 pal to ntsc and keep 5.1 sound i extractrd audio with virtualdub and encode it with besweet and ac3machine changing the framerate from 25000fps > 29970fps and selecting 5.1 output and same bitrate as origanal ac3 file (448) i end up with a working ac3 file but it is about 17 seconds shorter than the encoded video file and seems to play back at a faster speed i also tryed using bsweetgui and besweetv.15b with gives the same length ac3 file as the video with5.1 but is al scathy sounding with no bass at all is there a way to get an ac3 5.1 to match my video or to fix the ac3 file i encoded with ac3machine so that is not 17 seconds shorter than video any help would be very welcome
ty in advance :confused:

[scharfis_brain]

when converting film from PAL to NTSC you have to do a slowdown from 25.000 fps to 23.976 fps.

A speedup to 29.970 fps is wrong!

[eagles]

the video i encoded from 25000 > 29970 fps using canopus procoder but it only outputs audio in 2 channel witch works if i convert it to ac3 but i want to keep th 5.1 that came with it i thought i needed 29970 fps for a dvd ? procoder has the frame rate box grayed out and can not change it from 29970 fps

[Happygolucky]

Originally posted by eagles
the video i encoded from 25000 > 29970 fps using canopus procoder but it only outputs audio in 2 channel witch works if i convert it to ac3 but i want to keep th 5.1 that came with it i thought i needed 29970 fps for a dvd ? procoder has the frame rate box grayed out and can not change it from 29970 fps

Using Procoder you probably won't be able to do what you want. I've used the Avisynth trick to get TMPGEnc (or CCE) to convert PAL to NTSC at 23.976 fps then run Pulldown to get the 3:2 pulldown for DVD compatibility, and used AC3Machine to convert the audio from 25fps to 23.976 fps AC3, then used TMPGEnc DVD Author to multiplex the VOBs, works great. But since Procoder does the conversion for you, it is doing the pulldown and there isn't an easy way to tell what it is doing to the sound file.

[eagles]

i used nandub to etract ac3 witch i saved as .wav then used besliced on .wav renaming it to .ac3 there was also a sync error that besliced fixed. then i authored .ac3 and video encoded at 29970 fps with maestro and it plays perfect on pc and stand alone with 5.1 sound but i don't understand why unless besliced changed framerate i thought besliced just fixed damaged audio files because the .wav i extracted from origanal source is 25000fps and video is encoded at 29970 fps anyway it works but would be nice to know why ?:D

[vtwin0001]

is there a way to take an AC3 and extract each of its channels to a wav file independently (1st channel = 1 wav, 2nd channel = 2nd wav, and so on)

I know this question might be dumb, but I am new into this AC3 thing, I usually just take the AC3 and convert it with headache to a sinlge WAV sound and then back to AC3 using the tool from Scenearist.

If this question has been answered before, I beg you please forgive me, since I just couldnt find what I was looking for since there were too many answers

: oS

Thanks