[sdiy] Tempo/Clock-to-CV conversion

[Florian Anwander]

Hi Anthony

looks worth a try since it is very simple, but I fear that the voltage 
is not very constant. And if the lag-time is long enough to smoothen the 
voltage enough, changes of the clockrate won't be transferred only very 
slowly.

Florian


anthony wrote:

> Check in one of the "Device" volumes for a "pluck follower". I think 
> just googling "pluck follower" should take you there. It's part of Craig 
> Anderton's AMS-100. It's in "Device", 1-11, p. 12.
> 
> The idea is to use it after a normal envelope follower and the faster 
> you pick the more voltage accumulates. So it is sort of a sample-n-hold, 
> but more like a follow-n-lag, but the lag is pretty high.
> 
> 
> ----- Original Message ----- From: "Florian Anwander" 
> <Florian.Anwander at consol.de>
> To: "synth diy" <synth-diy at dropmix.xs4all.nl>
> Sent: Tuesday, October 30, 2007 11:06 AM
> Subject: [sdiy] Tempo/Clock-to-CV conversion
> 
> 
>> Hi,
>>
>> I am lookong for an easy possibility to convert a clockrate into a CV. 
>> The final goal is to control a delay, which is clocked by an VCO The 
>> delaytimes should change synchronous with the tempo; the change does 
>> not have to be 100% perfect (there for i have a MIDI-clocked Delay).
>>
>> My first idea looks like that:
>> A binary counter is counting down at a fixed rate. The output of the 
>> counter is D/A converted (resistornetwork), and the resulting voltage 
>> feeds a S&H stage.
>> The positive edge of the incoming clocksignal clocks the sample&hold 
>> and (a little bit delayed) resets the counter.
>>
>>
>> Am I missing something? Any thoughts about it?
>>
>> Florian
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at dropmix.xs4all.nl
>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>
> 
> 

-- 
Florian Anwander                  |ConSol
Tel.   +49(89)45841-133           |Consulting&Solutions Software GmbH
Fax    +49(89)45841-111           |Franziskanerstr. 38, D-81669 München
email: florian.anwander at consol.de |http://www.consol.de