Possibly goofy idea...

[Curtin, Steven D (Steven)]

Scott,

This is a great idea with a long heritage (although not in M*DI land).  The
EML 300 series synth had an optional keyboard that was basically a telephone
touch pad, with an accompanying pot for each of the keys.  Pressing the key
sent the voltage out to a CV summer, as well as a S/H.  Likewise I think the
Buchla sequencer and Serge TKB had accompanying knobs for different outputs
when different touch switches were pressed.  Go for it!

Steve C

-----------------------------------------------------------------
Steven Curtin  
Lucent Technologies Microelectronics
ph: (732)949-4404   fax: (732)949-6711
http://curtin.emf.org
sdcurtin at lucent.com
-----------------------------------------------------------------


> ----------
> From: 	Scott Gravenhorst[SMTP:chordman at flash.net]
> Reply To: 	chordman at flash.net
> Sent: 	Tuesday, May 09, 2000 1:45 PM
> To: 	synth-diy at node12b53.a2000.nl
> Subject: 	Possibly goofy idea...
> 
> I haven't seen this one (but that doesn't mean it doesn't exist)...
> 
> One of my favorite things to do with my FatMan is to hold down
> a key to play a constant pitch and fiddle with the filter cutoff
> freq knob with rez at max.  One can "select" harmonics.  What I
> would like to do is to build a very simple device that has 5 to 8
> micro switches (perhaps a salvaged keyboard).  These switches
> would conduct to a common point, a DC signal from the wiper of a 
> pot wired as a voltage divider supplying 0v to max CV.  The CV 
> seen at the common point is supplied as the filter's cutoff freq 
> CV.  Each key could be "tuned" by pressing it and adjusting it's 
> pot.  A sort of human clocked and human programmed analog 
> sequencer.  I would think I could then "play" these harmonics.  
> The control voltage output of this could probably be used other 
> ways as well.
> 
> In the real circuit, I'd probably use analogue switches, controlled by
> the physical switches.
> 
> Does this sound useful to anyone else?
> 
> -- Scott Gravenhorst
> -- Linux Rex, Linux Vobiscum  |  RedWebMail by RedStarWare
> -- FatMan: www.teklab.com/~chordman
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> -- The 21st century does NOT start in the year 2000!!!
> 
> 
>