Half the frequency playback rate, then convert back to 44.1KHz (or whatever the intended output format you want). You wont need to use a pitch-shifting algorithm that way.
So, if the +12 pitched native sample playback rate is 44.1KHz, drop the frequency playback to 22.05kHz. The sample will now be playing at the proper speed (the playback speed has been halved = ie. down one octave = -12 tones).
Then convert this file back up to 44.1KHz and save it out, to import into your projects.
Not sure how you can automate this for batch conversion, but it would be relatively quick to do it manually (even quicker if you assign a few hotkeys). Depends how many samples you have to convert.
[Edit] Oh, hundreds, lol! Doh. Erm...
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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?  A ribbon-controller or XY-Pad might be nice, too, please! Thanks!
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