MOTM

Answers to follow.
>
> he talks about exponential vs. linear VCOs: expo. being for audio signals,
> lin. to be used for frequency modulation of other signals (as CVs). are
> there any plans for linear MOTM VCOs?

Look at the from panel of a MOTM-300. See that switch marked LIN/EXP.... :)

>
> how would one realize the following envelope: ADS DS DS ... R ?  by
> chaining ADSRs somehow?

No such thing as a DS DS. You have to Decay DOWN to Sustain. I think he
meant
ADS ADS ADS R

which the 800's do with seperate GATE and TRIG. You need a Kenton Pro2000 to
do this.

>
> inverters: will a future MOTM inverter most likely change a signal's phase
> 180 degrees, or might it be adjustable over a range?  and will it do the
> same for CVs?

All filters have "reversing attenuators" which act as inverters in the -5 to
0 range
on the pot. Seperate reversing attenuators will be offer in the fall.

>
> would someone tell me the (electrical) difference between mixing and
> summing signals?

No difference.


>
> wells describes formant modulation as modulating the cutoff freq of a
> carrier with the amplitude of a modulating signal.  how does this work in
> real life?? will i be able to send a carrier signal into a motm440 and
> control its cutoff with a modulating signal sent through an envelope
follower?

Yep.

>
> how to 'remove' one side of an AC waveform and be left with only its neg.
> DC component or its positive? (am i using proper terminology?)

That's sort of tricky. No module yet to do this.

>
> i know we've been over this before, but  why is it not possible to control
> the MOTM100's vibrato rate with a pot?

Because is not an oscillator, it's a *very* high Q bandpass filter that
'rings',
producing the damped sine wave. The frequency is controlled by the ratio of
2 capacitors.

Paul S.