Archive of the former Yahoo!Groups mailing list: MOTM

I have an interest in imparting human voice qualities to various
sounds as has been done by Tomita, et al. (Not using a vocoder -
purely by mucking with the harmonic spectra.) Since I don't have the
proper number of modules to do this yet, I was wondering if anyone in
the group has played with such setups. My specific question relates
to VC of the filters... should the keyboard control voltage cause the
filter cutoff frequencies to track the pitch source on a 1:1 basis to
preserve the sound? Or is the tracking less than 1:1, or are the
filters simply fixed and the useful range is less than 2 octaves?

Another question is, what is the "best" waveform to use as the
excitation source for 'voice' configurations? (I was thinking of an
80/20 pulse from a 300 VCO but would a sawtooth be better?) I know
that the excitation wave has to be harmonic-rich, but is there
a "best"? Okay, that spawns another question... is there a waveform
that is generally accepted as being the most harmonic-rich (other
than white/pink noise!)?

Cheers!
Tom Farrand