[sdiy] VCO design question

[Antti Huovilainen]

On Tue, 2 Dec 2008, harrybissell at wowway.com wrote:

> You might want to consider that while the idea is appealing... the sonic
> effect of the saw / triangle wave morph is a little weak. Its more of a
> subdued version of PWM (imho) and might be underwhelming as an audio VCO.

In fact, for slow modulation (of PW or pitch), it's equivalent to 6dB/oct
lowpass filtering of PWM with the cutoff tracking VCO pitch.

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova