[sdiy] WTB: Paia EKx40

[Gene Stopp]

One would think....

...but back in the ASM-1 development days I was messing with an HP3325
big-ass function generator, and I noticed that the sound was particularly
crisp and clear, especially when doing a cutoff sweep through a VCF. The
harmonics jumped out one by one as if controlled by faders. The waveforms on
a fast scope were mathematically perfect, with invisible (i.e.
instantaneous) vertical slopes, even at high frequencies. It also could have
had something to do with extremely low jitter. This is a rather expensive
lab box, even these days on ebay.

I remeber the CFR Tau VCO docs specifically stating that jitter was a good
thing, being more "natural" sounding, and showing a diagram of their
intentionally added jitter (maybe they just couldn't get the noise out of
their sawtooth discharge threshold, and made it a selling point?). I do not
remember anything special about the sound... just another VCO...

Best Regards,

- Gene



-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Tim Parkhurst
Sent: Tuesday, March 09, 2004 3:08 PM
To: 'prototek'; synth diy
Subject: RE: [sdiy] WTB: Paia EKx40


On a related tangent, just what would make one VCO sound better than
another? I can't imagine there would be THAT much difference in the raw
sound from the VCO unless the waveforms were noticeably distorted,
non-linear, or otherwise buggered up. Basically, I would think a saw wave
would sound like a saw wave, a square like a square, etc., and any audible
difference would also be apparent on a scope. Any thoughts, comments on
this? 


Tim (noticeably distorted) Servo
"Imagination is more important than knowledge." - Albert Einstein