how can i extract audio from film and place onto another?

[shamus]

hi everyone.

i know theres some clever people on here,wondered if i can have your help please.

i have 2 avi films,one is excellent picture,but foreign sound,other is poor picture,but english sound .

in laymans terms,what would be the best way to extract audio from 1 and pic from other and then combine them?.

am i right in thinking this would be very technical?i.e getting audio and pic in synch etc .

thanks in advance for any help.

[guns1inger]

virtualdubmod. Demux the audio from the avi with the good audio. Load up the avi with the poor audio and add the demuxed audio as a new stream. Disable the other stream and use Direct Stream Copy to write the results to a new file.

This will only work if the audio is the same length, that any delays are identical etc. Otherwise you may have sync problems that you will have to correct.

[daamon]

Hi shamus,

Load the AVI with the good audio into VirtualDub. Save the audio out to a WAV file - this is easily done: File -> Save WAV...

Now load the AVI with the good video, and select the saved WAV as the audio source: Audio -> WAV Audio... -> Select saved WAV file.

Save this arrangement of AVI and WAV:

1) Video -> Direct Stream Copy
2) File -> Save As AVI...

That should do the trick.

EDIT: I had this thread open ages ago, and finished off my reply just now - guns1inger replied in the meantime. Same principal, nearly the same method just a different variant of the same tool.

[guns1inger]

You must type as slowly as Geoffrey Boycott used to bat . . . . .

[daamon]

You must type as slowly as Geoffrey Boycott used to bat . . . . .

I started on a reply as I knew I could help, but had to dash out to several meetings - I left the reply "mid sentence" and finished it when I got back.

In the meantime, you slipped one in... A bit like Shane Warne

[guns1inger]

I never touched the phone. I can't even spell SMS

[KBeee]

You must type as slowly as Geoffrey Boycott used to bat . . . . .

I'm glad he types slowly - I can't read very fast

[moviebuff2]

Hi,

Will this method work with .vob files? Can I save the dubbed ones as .vob? Or, do I have to convert .vob files to .avi?

Thanks

[Abond]

No and no and no.
You demultiplex the vobs with ReJig in file mode to m2v video only file (the audio in vobs you do not need) and author the dvd again with the new audio.

[shamus]

Thanks Guys,I will give it a whirl and post back the results.

Thanks a lot.

[shamus]

ok daamon,idea worked easy peasy lemon squeezy,it merged good audio and video just like you said.

only problem now is dubbing is way out .any ideas what i can do next?. .

[Abond]

Analyse your files (in GSpot). Post a image or type manually the results of analysis. We are especially interested in the properies of the audio from the file with good audio. Also look for frames per sec. for both files.

[guns1inger]

If the audio is out of sync I would suggest you have different delays in the two files. You need to determine the delay of the new audio, and use either ac3 delay corrector or your authoring app to adjust for it.

[shamus]

hi guys,here is the info that ABOND asked for,if ive done it correctly?

FILM 1(GOOD AUDIO)
type AVI,
25.000 FPS
1059kb/s BITRATE
AUDIO 192kb/s(96/ch,stereo)CBR Fs44100Hz MPEGLAYER3(MP3)(0x0055)


FILM 2(GOOD VIDEO)
type Open DML AVI,
25.000 FPS
1249kb/s BITRATE
AUDIO 192kb/s(96/ch,stereo)CBR Fs48000Hz

[Abond]

Yeah, I suppose gunslinger is right. Seems all is ok with the audio. Look in the field I/L (GSpot 221) or Container (GSpot 2.52). Post the info.

[shamus]

ok
FILM 1(GOOD AUDIO)
I/L 1 vid frame (40 ms) Split: Yes


FILM 2(GOOD VIDEO)
I/L 2 vid frames (80 ms) Split: No

FILM when i have combined the good audio and video
I/L 1 vid frame (40 ms) Split: Yes

Must admit im getting a bit lost now .

Im sure you guys are about to make things sound simple though?