[sdiy] Moogey jitter

[harrybissell]

uhhh... I most have said that poorly because I agree...

The slew rate (of the opamp) becomes the limiting factor... and makes
a measureable (and maybe even auditory) difference in what ~might~
have been a faster reset time.

(now to throw the bomb :^)

The faster reset time is what makes a VCO sound "phat"

(ok I'm just KIDDING !!! :^)

H^) harry

Antti Huovilainen wrote:
> 
> On Mon, 17 Apr 2006, harrybissell wrote:
> 
> > Ditto for those with discrete amplifiers. Follow a VCO with an opamp
> > and you cannot hear a reset faster than the slew rate. I've seen
> > cases where this was the limiting factor.
> 
> Actually it does make a measurable difference in some synths. Notably,
> Moog Taurus has ~25 us reset time (according to service manual). This
> corresponds to comb filtering at mostly ultrasonic frequencies but there
> is some attenuation below 20khz already.
> 
> Antti
> 
> "No boom today. Boom tomorrow. There's always a boom tomorrow"
>    -- Lt. Cmdr. Ivanova