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8. Multitouch Prototype 2
11 months ago
2. OVNItos
1 year ago
8 x 8 touch sensitive array sampled at 1300 Hz. Cost: about $50 in materials plus a nice audio interface. More info: 2uptech.com/intimate_control

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205 Likes

  • Mischa Daams 11 months ago
    totally osm!
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  • gamers in exile 11 months ago
    fantastic stuff!
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  • sebastian hennessy 11 months ago
    Hello randy ! Thanks for sharing ! This is great stuff indeed !
    looking forward in seeing and hearing more of your work
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  • eolifize 11 months ago
    great idea!!
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  • Randy Jones 11 months ago
    Thanks for the support! Stay tuned for updates.
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  • LaSonrisaDivina 11 months ago
    Fantastic!!
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  • amsonx 11 months ago
    Simply great !!!
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  • Darren Geraghty 11 months ago
    brilliant stuff.
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  • fucinaoff 11 months ago
    Superb. The audio interface brings the off the shelf price of the controller to slightly more than 50$ though :) thanks for sharing this one :)
  • m~fischer 11 months ago
    yeah, my thoughts exactly.
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  • Colin Mutchler 11 months ago
    Randy this is excellent. Do you think you would be be able to link it up with an image mixing solution like the vidvox software. I could image simple photo and video mixing with a multitouch interface would be perfect.
  • Randy Jones 11 months ago
    I plan to make an app that sends the controller data in OSC (Open Sound Control) format, so people can try all sorts of things like this. It's a little ways off though.
  • Colin Mutchler 11 months ago
    Excellent. Cool thanks Randy. Keep up the great work.
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  • Alex Beim plus 11 months ago
    very impressive
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  • Jonas Jongejan 11 months ago
    Wow, fantastic!
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  • Kyle McDonald 11 months ago
    Very nice. I feel like I could actually play a tabla with two of these.

    At 1:26, why doesn't the pickup signal change? Is it because you're looking at column 1, which isn't really depressed at that point?

    Some of this could be implemented using an Arduino, to cut down on cost. The excitation signals could definitely be generated using an Arduino. The pickups are the hard part. One way to make a cheap 8-channel input is with 4 Griffin iMics, which comes to $120 (of course, with that you could do the excitation signals too). You could do the most basic signal processing on an Arduino, but you'd have the bigger problem of serial output around 120 Hz... unless you did it over ethernet, which could be cool: two Arduinos and an ethernet output.
  • Randy Jones 11 months ago
    You mean there's no centroid in that particular frame? I don't know, it could just be too light a touch.

    I would love to see someone make an Arduino version. I am not sure that it can generate the precise frequencies needed for the carriers. I am working towards a microcontroller-based solution though.
  • Kyle McDonald 11 months ago
    Not that there's no centroid, but at the bottom left where you're using the spectrum to visualize the incoming signal -- I don't see any change in the amplitudes of the individual peaks.

    Since the Arduino runs at 16 MHz, any frequencies it generates will not be perfectly in sync with 44.1 kHz, but I think you could probably generate them close enough to what you want.

    I'm looking forward to the microcontroller-based solution -- if you can get the analysis off the computer and into the package, I'm totally ready to replace my Trigger Finger with this :)
  • Randy Jones 11 months ago
    Funny, clicking that little time link took me to a different place. I understand your question now. The pickups change, but very little compared to the overall amplitude. If you really wail on the surface you can see the amplitude move a few pixels.
  • Kyle McDonald 11 months ago
    Ah, ok. Capacitive coupling always seems to be like that... lots of very small changes. Also, it's my fault too -- I meant 1:26 rather than 1:36.
  • Ketan Surender 11 months ago
    What kind of microcontroller do you plan on using?
  • Randy Jones 11 months ago
    I am looking at the 32-bit Atmels.
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  • defetto plus 11 months ago
    really nice, where can i buy one?
  • Randy Jones 11 months ago
    You can buy all the parts from McMaster-Carr, except the plywood. :-)
  • defetto plus 11 months ago
    but dont think i can build it myself... :D
  • Randy Jones 11 months ago
    Please stay tuned...
  • defetto plus 11 months ago
    :)
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  • seth sandler 11 months ago
    Great work Randy. Are you a member on NUI Group? If you're not and you'd like to discuss your work with others that are working in the same field (multitouch/natural user interface) technology, we'd love if you made it over to nuigroup.com

    You can find a thread about your project here: nuigroup.com/forums/viewthread/3884/

    Again,
    Great job and hope to see you at NUI Group
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  • 0p0 10 months ago
    WOW! :D awsome!
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  • Lo-Fi Massahkah 10 months ago
    Nice. And interesting.

    The only downer is completely occupying an 8 in/8 out audio interface. But as a concept - cool indeed. Now figure out a way to implement visual feedback on the pad! :-)
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  • kitschpatrol plus 10 months ago
    very savvy
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  • basementhum 10 months ago
    This is a really exciting and important development. Congratulations!

    Would it be feasible for someone to incorporate an led grid into a similar device while preserving its current functionality? I realise that this might be 'thinking small' in terms of the possibilities this presents, but i think that many would be excited about the prospect of a pressure sensitive monome ;)
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  • clubvisuals.net 10 months ago
    miau
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  • Gordon Simson 10 months ago
    Really interesting!
    I would love to see this hardware being used to simulate a Hang Drum.
    vimeo.com/2310144
    Hang Drums are really expensive but I would love to play one, and I am sure that I am not the only one.
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  • Tiago Serra plus 9 months ago
    Very impressive indeed. Would love to see an Arduino version though ;). Arduinos are everywhere this days..
  • Randy Jones 9 months ago
    That would be nice, but the Arduino does not have enough processing power for this project, so we are making our own board.
  • seth sandler 9 months ago
    Sounds good Randy. Can't wait to see more.
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  • ~ 9 months ago
    your damn awesome man... we should team up and release this into a community i admin (nuigroup)...

    keep up stunning work!
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  • Corrado 9 months ago
    fine work
    let`s increase the project
    it `s amazing
    ((((C))))
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  • Paul Matthis 9 months ago
    I've been searching for an interface like this for years! The Fireface price tag is pretty inhibitive. Also building this myself sounds scary as hell. Still, I gotta get me one of these somehow.
  • Randy Jones 9 months ago
    I tested a MOTU Ultralite interface and it works great. You can find a new paper and some more info at madronalabs.com/DIY .
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  • Paul Matthis 9 months ago
    Awesome, thank you! That means my MOTU Traveler should work just fine. I'll keep you posted.
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  • Madelyn Byrne 8 months ago
    Very cool instrument, and your presentation is clear and fun.
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