A lot of this sort of thing can be done with Digital Signal Processing. Once a signal is digitized, it's a fairly simple matter to shift the pitch by a set amount.ricky3000 wrote:Wow, a pitch shifter sounds fantastic as long as it doesn't have to much of a mechanical flavor to it. ie: some lower end harmonizers.
I've actually got a unit that will do that, a Lexicon MX-200. It allows you to shift the pitch up or down by up to 24 semitones (2 octaves). I haven't really used it a lot though since I mainly got it for reverbs. I did set up a few programs, one to combine the original with an octave up (to simulate an 8 string bass), sounds pretty good. I did another one to do an octave up, an octave down, all mixed with the original (for, uh, 12 string with sub-bass?). It sounds pretty massive.
It would probably work for drop tunings too, but like I said, I haven't really messed with it too much.
I think whether or not it colors the tone will depend a lot on the quality of the A/D converters, etc. Theoretically, it should be possible to make it almost perfect. Of course, there's always the old debate of digital vs. analog and which sounds better...
