[sdiy] very cool controllers

Paddock, Toby tpaddock at seanet.com
Tue Feb 8 06:06:31 CET 2005


> 
> > Jeez, these controllers are damn cool:
> > http://www.qprox.com/products/index.php
> 

john mahoney wrote:

> The fly in the ointment may be the triggering speed. While I don't see
> specs
> for the QMatrix parts, the QTouch devices (presumably based on the same
> technology) have a response time of 99ms -- about 1/10 second -- which is
> too slow for some uses.
> 
> The linear and rotary (iPod?!) sliders are neat, and I like their
> proximity
> feature:
>     "A unique prox mode allows the device to detect hand
>     movement up to 50mm away from the panel surface;
>     this can be made to magically activate a display or
>     product from standby, before the user even touches
>     the product!"
> 
> Perfect for creating an "It's alive!" user experience. ;-)
> --
> john


I think the sample time varies with the cap that determines 
the sensitivity. Less sensitive = faster. But still maybe 
too steppy for pitch control like a theremin. But maybe OK 
for pitch bend or filter controller?

Here's some more info:
http://www.seanet.com/~tpaddock/c2cv.html

Toby




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