Originally posted by: Doctor M
Pupil: what is your source for the 72.4 cents number? Calculated or from elsewhere?

discussed on page 2, second post of this thread. It tells you in sound forge the corresponding figure in cents when decreasing the pitch of the sound, also after that post Gillean worked out the maths so showing it is plus or minus 72.4 cents difference between PAL and NTSC audio.

Thats interesting about you fathers cassette player, I didnt think that was possible using analog tape decks. A playing on Google I shall go.

EDIT: ahhh, ok it would have been done with an analog ring modulator, that must have been one very fancy cassette player your dad had! Not the way time stretching works now as that can only be done digitally, that method as more akin to how a vocoder works, I bet playing music through that cassette deck and changing the pitch would sound funny, very Rick Wakeman