I'm working on an American movie that was dubbed in German for PAL. Since there is a lot of music and singing it was pitch corrected to sound right at PAL speed. Now we're doing a blu ray version at NTSC speed (slower). Obviously since there was pitch correction introduced into the PAL the NTSC will be not only slower and a lower pitch but slightly off key. I can correct with my Pro Tools audio suite Pitch Shift, (1.047:1 with speed correction) but there are anomalies. I'm hearing pulsing in steady notes and some my tracks drift and create echos. My Accuracy setting is at zero. I know there is software and plug-ins that do this job much better. Any recommendations?
Seratto Pitch 'n Time has been the defacto plug in for this type of work. However, you will still have some aretfacts as a result of this process.
I am assuming that this is something like an old MGM musical or the like, where the singing wasn't dubbed in German. If so, I would suggest doing so editorial - using the non pictch corrected NTSC English for the musical numbers and the German newly pitch corrected track for the remainder of the film.