[sdiy] Pitch-to-voltage converters

[Harry Bissell]

The EFM one was based on the Moog design "Etherwave PV converter" and only works if you
have a good stable square wave. That is the tough part.

Also, it divides the input frequency in half so there is at lease 24ms latency on a low
guitar E string.

I'm familiar with all the commercial units, we can talk :^)

H^) harry


----- Original Message -----
From: David G. Dixon <dixon at interchange.ubc.ca>
To: 'Synth DIY' <Synth-diy at dropmix.xs4all.nl>
Sent: Thu, 18 Feb 2010 00:51:37 -0500 (EST)
Subject: [sdiy] Pitch-to-voltage converters

Hey Team!  I'm planning to build a pitch-to-voltage converter, and I'm
looking at Harry Bissell's EFM design (very clever!).  I was just wondering
whether anyone had built one, what your impressions were, what kind of
signal preprocessing/filtering you might have experimented with, and whether
there might be any design improvements of which I should be aware.  Please
feel free to respond offline.

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-- 
Harry Bissell & Nora Abdullah 4eva