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Post #127585

Author
pupil
Parent topic
Dr. M's Reinventing The Wheel Edition (PAL to NTSC+) (Released)
Link to post in topic
https://originaltrilogy.com/post/id/127585/action/topic#127585
Date created
4-Aug-2005, 9:14 AM
Originally posted by: Doctor M
In the past (and my future plans) involved using BeSweet's simple 24 fps -> 23,976 FRC preset. Do you know of a program that actually can resample as you've described or are you referring to the kind of process BeSweet already uses?

Basically you can still do all this with Sound Forge (since you are using this already).

1) In the NORMAL case of turning PAL to NTSC, where the pitch is 4.096% higher than the original film, you use the pitch correction plugin in SoundForge, decrease the pitch by 72.4 cents, but DON'T tick the preserve duration box.

2) In this ABNORMAL case of turning PAL to NTSC, where the VHS audio of ANH was pitch corrected in the original mastering process, you use the pitch correction plugin in SoundForge, decrease the pitch by 72.4 cents, and DO tick the preserve duration box.

All BeSweet is doing is example 1. I would say 99% of the time, you would just need to do example 1 (or use the BeSweet method) but with this bizarre example of the PAL ANH VHS audio, you would use example 2.

If doing example 2 in Sound Forge, you will see the pull down menu with different settings for keeping the time duration when pitch correcting the audio, mess around and see which sounds best (but like I say, for this project Doctor M, don't bother, you're best getting the soundtrack off an NTSC laserdisc and fitting this to Moth3rs video after you have NTSC'd it).

I think we are on the same wavelength now, I was starting to get a bit confused there with what you were asking

Originally posted by: Moth3r
I just remembered, back in the day when I used to do a bit of work as a DJ (this would be mid to late '90s) there was a piece of hardware available that did some kind of realtime time stretching/pitch preservation for you. Basically it meant that DJs could drastically ramp up the tempo of a track without getting the "helium" effect on the vocals, and it also compensated for any sudden pitch change if you touched the record during a mix.

Digging around Google came up with this, but not much else.

So what I'm saying is that the technology for pitch preservation did exist back when these VHS versions were released, so it shouldn't be so much of a surprise that it was used. Just makes you wonder how many other PAL titles have the correct pitch?


Yup thats right, the technology has been around for quite a while to do this, its just bizarre they used it since AFAIK it is standard practice to just speed the audio up with the video and leave the slight pitch increase. Those funky mastering engineers back then were obviously trying to be clever

Like most audio DSP FX technology, the ability to do these things with hardware has been around for quite a while, but we're still trying to catch up doing it purely software wise. Take for example reverb units, we still can't perfectly synthesise using only software the crackin reverbs you get out of 10 year old Lexicon reverb units.

Also, is anyone here an old skool early 90's Junglist? No... just me then Classic track by Dead Dred called Dred Bass, it has a time stretched ragga vocal sample in it, beauty track from 1994. Same technology we use for Time Stretching now, but do-able using hardware samplers well over 10 years ago.