MOTM

>>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?<<

Typically you would use a number of bandpass filters that are tuned to fixed 
frequencies.  But those will be different depending on whether you are doing 
male/female or what vowel sound you are trying to get.  However, synthesizer 
filters never seem to have steep enough rolloffs to get a really clear sound. 
 You really need to gang up on them to get rid of a lot of the synthetic 
electronic waveform sound.

>>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?)<<

Pulse is better than sawtooth in most cases, but mixing in noise really helps 
a lot, especially for a large chorus of voices.  That's what I did on a Nord 
Modular Mellotron patch I did.  Perhaps even using noise as a modulation 
source to roughen up the sound would also help.

-Elhardt