Voltage control

gstopp at fibermux.com gstopp at fibermux.com
Thu Aug 29 20:11:41 CEST 1996


     Oh yeah really sucky response-time-wise. In fact I seem to remember 
     that if you blast a full-brightness LED into one it will measure less 
     than 100 ohms, and if you turn off the LED it will go to about 10 
     Megohms, but it will take about 5 seconds to get to 1 Meg and about 5 
     minutes to get to 10 Megs!
     
     So - keep this in mind. They're OK for programmable parameters, where 
     you change a patch once in a while, but if you want to control the 
     attack of an EG with a 2 Hz LFO, you're better off with a VCADSR chip.
     
     Also in poly systems where you want to match the EGs between voices, 
     you should try to go find some CEM chips. Of course this may be easier 
     said than done these days....
     
     - Gene


______________________________ Reply Separator _________________________________
Subject: Re: Voltage control
Author:  majmoog at synthfool.com (Kevin Lightner) at ccrelayout
Date:    8/29/96 10:54 AM


>The LED/photoresistor idea is a good one.
     
Aren't these things pretty slow in response though?
     
-K
     
     




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