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