> is it possible to increase the frequency of this voice (makeing a Donal Duck > pitch from a bass... without shorten the runtime / quicken the speaking ? > And how can I achieve such an effect? Is it possible to "tune" the frequence > over > the recording (variable freq by constant speed) ?
There are 3 or 4 ways to do this, each of which has problems. I always try the expsrc path first -- it's a combination of sampling rate conversion and granular synthesis. There's another version of this called ssb-am (very cool -- "an Idea that is mine, My Idea!"). Then there are FFT tricks that almost never work (the phase vocoder), or take the age of the universe to compute (dsp.scm has a few of these). Then, there's rubber-sound, which really does never work. I once had a donald duck transform (back in mus10 days), but I thought it was a joke and forgot about it -- now I don't know what I did. _______________________________________________ Cmdist mailing list [email protected] http://ccrma-mail.stanford.edu/mailman/listinfo/cmdist
