[sdiy] OK, so...there's this guy...

[Tim Parkhurst]

Maybe this guy should do a search under "capacitive Switches" or "Touch
Switches." It sounds like this guy wants to do something LIKE a touch
switch, but not exactly the same thing. However, maybe some of the tricks
used with capacitive switches and touch switches (using RF fields, proximity
detection, using finger capacitance to vary the speed of an oscillator and
detecting the frequency change, etc.) might help this guy out in his
obviously noble quest for knowledge, truth, and weird noises.

This guy might also want to check out the wacky capacitive pitch bender used
on the PAIA "Oz" mini organ years ago.


Tim Servo 
(with theme to "That Girl" and lyrics changed to "This Guy" running through
his head now)

**************************


> -----Original Message-----
> From: Peter Grenader [mailto:peter at buzzclick-music.com]
> Sent: Friday, September 26, 2003 10:47 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] OK, so...there's this guy...
> 
> And let's say, for argument sake, that this guy is working of creating a
> logical true (high) when his finger is placed on a piece of conductive
> material, be it a small strip of metal or a coin, or anything with similar
> conductive qualities.
> 
> And let's just say that he's got it to the point where a signal will in
> fact
> rise from ground to about 2 tenths of a volt, albeit one that's looks to
> be
> nothing more than amplified noise in that it's a somewhat messed up sine
> wave with a period of about 15 ms.
> 
> And let's say, for argument sake, that this guy has tried a few tricks in
> an
> attempt to convert that to a linear DC level of .2 volts without success.
> 
> What would you suggest I, I mean... *this guy*, try next?
> 
> Any suggestions?
> 
> thanks in advance,
> 
> Peter
> 
> 
> 




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