MOTM

I know that the person asking is pondering a MOTM system, and that such 
requests are common. So, why *not* have such things posted on the site?

Several thoughts:

a) to me, it's like buying guitar strings not attached to a guitar, effects 
or an amp. Sure, the strings have their own "sound", but to what degree do 
they contribute to the final tone?

b) in theory, pretty much any manufacturer's VCO will sound the same coming 
straight out of the outputs. OK: the sine of 'X' may have a few more 
partials that are audible than 'Y'. If you want a REALLY clean sine, use a 
MOTM-440 VCF. It can track quite well and has <0.15% THD. Or, run the sine 
out through a '440. Those 4 poles will attenuate any extra harmonics quite 
well.

c) There are some specific cases that *more complex* audio will sound 
*quite* different from 1 VCO to another. Things like linear FM, audio-rate 
PWM and hard/soft synch. These types of demo files are more useful, IMHO.

d) how often are raw ouputs used from VCOs in audio tracks? Bueller....?

Usually, some sort of VCF is in the signal path, and more than likely that 
is a low-pass filter. So, any additional harmonics present by slight 
'wiggles' from 1 VCO to another will "go away" after the audio comes out of 
the LPF.

Paul S.