[sdiy] A question of CV ins

[Harry Bissell]

no less than necessary
at least one
as many as you can fit on the panel
as many as you plan to use simultaneously...

OK that's a bunch of trash answers...

For something MAJOR like VCO frequency, or VCF frequency... I'd have at least four or five
I'd expect to sum

Keyboard CV 
Envelope CV (initial pitch etc...)
LFO CV (vibrato)
another VCO CV (cross mod)
Pitch bend

Same for VCF

For more minor parameters, like PWM, or VCA I might use two or three

LFO CV
ADSR CV
Velocity CV

All things CV controlled should have at least one... if attack time, sustain time, LFO frequency things like that can be controlled
you should be able to patch them

I think you should draw up a 'normalization' map for your favorite patches and see how many you use
often. For more oddball patches you can include additional summing amplifers for inputs and mults for outputs.

H^) harry





----- Original Message -----
From: Elain Klopke <functionofform at gmail.com>
To: synth-diy at dropmix.xs4all.nl
Sent: Fri, 20 Jan 2012 12:04:24 -0500 (EST)
Subject: [sdiy] A question of CV ins

Hey all,

A quick question that is probably a matter of opinion. How many CV
inputs should a parameter on a synth module have? say VCO frequency or
Filter resonance as examples.

-Ian (time for another project-related poll) Smith
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-- 
Harry Bissell & Nora Abdullah 4eva