[sdiy] modular synth controller

[Scott Gravenhorst]

Ingo Debus <debus at cityweb.de> wrote:
>
>Am Montag, 12.01.04 um 21:07 Uhr schrieb Tim Parkhurst:
>
>> Yes, you might have to come up with a different sort of 'knob' because
>> the sort of gesture you make with a physical knob just doesn't work 
>> quite as
>> well on a virtual panel.
>
>How about one real knob (only the knob, not the pot) you can hold 
>against the screen where the virtual knob is and twist it there? The 
>"touch" screen has to sense the position and angle of that knob. 
>Perhaps the angle of a little magnet inside the knob could be sensed.
>
>You could even do a multi-turn thing this way. Hold the knob against 
>the screen, turn it clock-wise as far as you can, lift it, turn it back 
>(the screen wouldn't sense this), hold it against the screen again and 
>turn further and so on.
>
>Ingo

Interesting, a specially designed ergonomic stylus which resembles a
physical knob.  You're toast if you lose your knob...  Can you imagine
the panic of dropping your knob on a dark stage?  Have another knob in
your pocket.  There is certainly a tactile advantage over a touch screen.
 Wouldn't the "behind the screen" sensor stuff be a bit intense?  Hall
effect sensors I imagine, but you'd have to design and program it all to
tolerate some miscentering of the knob stylus.  Also, the screen
positions of knobs would then be locked in because of the sensors behind
the screen.

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