[sdiy] Analysis of frequency variation in analogue synths

[Ingo Debus]

Am 03.05.2007 um 18:22 schrieb Nicholas Gregorich:

> This reminded me of information from Dave Smith via Dave Bryce.  
> Regarding the choice of DCOs instead of VCOs in the evolver, Dave  
> Smith's claim is that a VCO and DCO output signal are  
> indistinguishable on a scope. While this may or may not be true,  
> the ears not eyes should be the ultimate judge.

Sure! A perfect 1:1 square wave and one with a slightly different  
pulsewidth sound very different; while on the other hand a rising and  
a falling sawtooth (audio range of course) look very different on a  
scope but sound the same.

Ingo