MOTM

Something like this ?
http://www.synthfool.com/diy/jh_ipscan.html
(scroll down to "piecewise linear VC waveshaper)
Apart from the transitions being linear segments rather
than "sinusoidal" ones, this should offer much of what you're
looking for, and maybe a little more. Like changing each of the
breakpoints witch CV's.

JH.


----- Original Message -----
From: Tkacs, Ken <ken.tkacs@...>
To: <motm@egroups.com>
Sent: Sunday, April 16, 2000 10:34 PM
Subject: [motm] Module Concept -- CV Transformer


>
> Here's a weird one... anyone think of how this could be done with
> conventional modules, or otherwise (I have to keep you clever people
> challenged)?
>
> How can I describe this. Is there any way to transform a CV so that, lets
> say on a graph, as the input CV rises linearly, the output goes up, down,
up
> down? Kind of sinusoidally?
>
> Know what I mean?
>
> Say you were applying this to a keyboard voltage. As you played up the
> keyboard, the transformed voltage would rise to say 5v, then start
dropping
> back to 0v, rise to 5v...
>
> At one setting, for example, it could be that the output CV rose as you
> approach "F," peaks at 5v on F, starts dropping back to 0v ast you
approach
> C-ish, then rises agin to hit 5v at the next "F" .... I don't know how
else
> to describe the effect I'm after.
>
> Why do I ask? Well, anything that can mangle a CV in a repeatable way is
> useful to me in a modular, for one thing. This particular idea arose from
> some daydreaming I'm doing about creating formats in a weird, roundabout
way
> and it occured to me that I couldn't think of how to do this. I imagine a
> module that would take a CV in and, over its range, convert it to the
above
> with an adjustable number/placement of 'humps.'
>
> In fact, in the past I've often thought about a general Transform
> Module---CV in, CV out, and a rotary switch for transform 'type' with a
knob
> to adjust it's effect. Transforms available might be Linear (no effect),
> Exponmential, Anti-log, Sigmoid, etc. etc. Plus the weird effect I can't
> even name, above. The thinking for this Transform Module came out of some
> stuff I was doing late last year working on moving neural net concepts
over
> to a modular synthesizer. Part of it is haunting me again.
>
> Okay, I know you're all saying, "What's a _matter_ with this guy, anyway?"
>
>
>
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