Originally posted by: Citizen
3. Most importantly, if you merely resample Moth3r's audio from 25fps speed to 23.976fps speed the correct audio pitch will be lowered by 4.096% and everyone will have deeper voices.
This is because the PAL VHS audio source used for his release has been sped up from the original 24fps film but they (the VHS producers) didn't just resample it they also preserved the audio pitch, undoing that and keeping the audio as best as possible may be difficult because you'll have to resample whilst preserving pitch, I couldn't find any timestretching tool I was happy with, the ones I tried (proper packages) weren't competant enough to stretch and keep pitch without ruining certain pitches, it would ruin John Williams' score.
Use NTSC audio source if you can, but fitting it to the video source will be very difficult if the NTSC audio source doesn't have video to go with it as a guide to sync them up.
3. Most importantly, if you merely resample Moth3r's audio from 25fps speed to 23.976fps speed the correct audio pitch will be lowered by 4.096% and everyone will have deeper voices.
This is because the PAL VHS audio source used for his release has been sped up from the original 24fps film but they (the VHS producers) didn't just resample it they also preserved the audio pitch, undoing that and keeping the audio as best as possible may be difficult because you'll have to resample whilst preserving pitch, I couldn't find any timestretching tool I was happy with, the ones I tried (proper packages) weren't competant enough to stretch and keep pitch without ruining certain pitches, it would ruin John Williams' score.
Use NTSC audio source if you can, but fitting it to the video source will be very difficult if the NTSC audio source doesn't have video to go with it as a guide to sync them up.
Ahhhhh, right, this is where I was confused because comparing the Moth3r version and the Cowclops v1.0, I couldn't hear any difference in the audio pitch. I didn't realise that the original producers of the VHS audio source had preserved the proper pitch of the audio while stretching it by 4.096%. That makes sense now
I thought C-3PO's voice sounded a bit deeper than I was used to in Doctor M's clip, but I just figured it was because I was so used to hearing it at PAL speed over the years.Then, my suggestion for the sound would be to take the NTSC source sound you have and carefully fit that into the new NTSC'ed video you have. It will be fiddley but I definitely agree with Citizen about timestrecthing it, just don't bother! I've used many pro timestretch tools and they all make harmonically complex sound (eg music) sound horrible. Very few are capable of timstrecthing huge files by such precisely small increments as well, you would still have to mess around cutting and synching it up with the video, so just use the NTSC source sound and all will be great