Comments on: Passive Multidimensional Input

By: cyanide

cyanide — Mon, 05 Jan 2009 23:25:49 +0000

how about a stringless guitar using 2 of these panels, one for where you pluck the strings and one for where you hold them down. use copper wire on top instead of copper strips.

By: goldscott

goldscott — Wed, 31 Dec 2008 08:35:09 +0000

It would be interesting to add some sort of display overlay to the device for visual cues/feedback, making an even more immersive, intimate controller.

By: DeFex

DeFex — Tue, 30 Dec 2008 21:43:07 +0000

Ok i understand how i could do this. i have creamware scope SDK(lots of DSP on a PCI card) and a spare fostex cheapo ADAT interface.

sending 10-20 khz audio waves, easy.

send the returns to the front end of a vocoder to get seperate control signal for each frequency.

after that is the “centeride function” im not so sure about that :p

By: Morden

Morden — Tue, 30 Dec 2008 13:40:21 +0000

@Raz

Granted this is also geared towards audio and instrument enthusiasts. not your standard instructables freak

By: rasz

rasz — Tue, 30 Dec 2008 10:17:47 +0000

happypinguin there is 400KHz sampling mentioned in the vid, that means expensive sampling card for your computer (or 848 TV card if you know how to hack one), but you still need to write the DSP code. Looking at the link there is no code published (apart from some libs for the commercial touchpad called MSP)

By: Blastar

Blastar — Tue, 30 Dec 2008 09:19:13 +0000

I would say that its almost innovative.

By: happypinguin

happypinguin — Tue, 30 Dec 2008 01:49:53 +0000

@rasz
I think you can do the processing
on your computer instead.
It would not be resource intensive
AFAIK.

By: rasz

rasz — Mon, 29 Dec 2008 23:21:36 +0000

$50 … plus $1000 DSP box for signal processing

By: gerwindehaan

gerwindehaan — Mon, 29 Dec 2008 19:43:33 +0000

this reminds me of the Unmousepad device I tried this fall, made by Ilya Rosenberg and Ken Perlin from NYU. (see http://www.youtube.com/watch?v=jxibIAHndl0)

By: rdagger

rdagger — Mon, 29 Dec 2008 19:14:46 +0000

Very impressive results. Are there any occlusion issues? It seems that if you used more than 2 fingers there are some cases a third press might get masked or worse incorrectly cause the other 2 points to show increased pressure.

By: happypinguin

happypinguin — Mon, 29 Dec 2008 18:16:08 +0000

Awesome.

I’m amazed by the responsiveness of
this touch device.

By: Jules

Jules — Mon, 29 Dec 2008 16:49:11 +0000

As The same kind of tool that the reactable do, that is very cool to see the 3D graphical at the same time of the user touch.

http://www.openprox.info

By: TheYikes

TheYikes — Mon, 29 Dec 2008 16:44:27 +0000

Thats awsome! i love how it reacts to varying pressure. I can think of a heap of uses for this little beauty!

By: Morden

Morden — Mon, 29 Dec 2008 16:43:28 +0000

Wow, just wow, great idea and implementation. The responsiveness and pressure sensitivity when compared to visually done multi touch is daunting.

I’m going to go home from work today and glare at my multitouch system with geek shame.

By: lando

lando — Mon, 29 Dec 2008 16:40:31 +0000

this seems like a pretty kool project and at just $50, thats awesome.