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mysteriousj wrote:

multi_s wrote:so it takes the fft and what? takes the inverse fft at 1/2 or double indexes?

do you have some evidence thats what they use and it inst just some more elaborate whammy scheme? (continuously mixing circular buffers)

As to what it does with the fft, I have no idea, and probably it's not made public. I'm not completely certain it's fft as well though, but the guts seem to point to it with the ic they're using.

But i just googled fft and pog and there's a few interesting sites..
http://valhalladsp.wordpress.com/2009/05/20/electronic-music-tech-hero-david-cockerell/
http://www.kvraudio.com/forum/printview.php?t=208046&start=0

Except that the guy that makes the claim in the first link comes into the discussion in the second link to say that it was all speculation.

I had always heard that the POG/HOG don't track anything, it's all done with sampling and transposing. I am more apt to believe that, because it seems to also pitch shift all of my pick and fret noise as well.

ya well either way there's not much tracking involved. im going to try and implement something over xmas break maybe to compare the approaches. the latency on the demos seems really low but that doesnt really preclude one approach or the other i guess.