Passive Multidimensional Input

December 29, 2008 by Nick Caiello 15 Comments

[vimeo 2433260]

Any musician who has ever used a computer to create music will tell you that while this technology is more than capable of producing great music, it is always a much more intimate experience to create by physically playing an instrument. In an effort to bridge this gap, [Randall Jones] has built a passive multidimensional interface that uses multitouch input to create an intimate experience that rivals that of a traditional musical instrument. While this concept may seem very complicated, the interface is made of only copper strips, rubber, and wood. At $50, this interface was designed to be inexpensive and appears to be very easy to use. As seen in the video, this interface can be used as anything from a drum to a multitouch synthesizer.

[via Make]

Multitouch MAME Cabinet

December 24, 2008 by Caleb Kraft 19 Comments

mame

[rdagger] sent us this really well done multitouch MAME cabinet build. He ha penned to find a used, and fairly worn cocktail cabinet. The monitor was damaged, keys lost, and internals had been home to mice for some time. He promptly tore out the old guts, replaced the smelly mouse damaged base and began building the projection system. For touch sensing, he’s using a web cam with the IR filter removed to detect disturbances in some IR laser beams. We’re not completely clear on how he mounted the lasers, he skips over that part. There’s nothing groundbreaking in the technology here, we’ve done multitouch many times before. This project stands out in its execution. [rdagger] has done a fantastic job, the construction looks fantastic. Check out a video of it working after the break.

Continue reading “Multitouch MAME Cabinet” →

Pen Based Input Improvements

December 21, 2008 by Eliot 10 Comments

[youtube=http://www.youtube.com/watch?v=EcE3XBytN-U]

Lately we’ve been focusing on multitouch technologies, but that doesn’t mean there isn’t interesting research going on in other areas of human-computer interaction. [Johnny Lee] posted a roundup of some the work that [Gonzalo Ramos] and others have done with pen based input. The video embedded above shows how pressure can be used to increase control precision. Have a look at his post to see how pen gestures can be used for seamless workspace sharing and how pen rolling can give additional control.

Multitouch Pinball Instrument

December 9, 2008 by Caleb Kraft 9 Comments

[youtube=http://www.youtube.com/watch?v=VpDltKLZSrM]

This is an interesting twist on multi touch input. [s9lucas] is using a simple multitouch system as an instrument that uses solenoids and pinballs to make music. He has taken the basic multitouch tutorial and combined it with an Arduino bell tower. The end result is possibly more fun to watch than it is to listen to, but that’s fine.

Nintendo DS OSC Support

December 6, 2008 by Eliot 22 Comments

dsmi

OpenSound Control protocol is an emerging standard for communication between musical programs. It’s meant to replace MIDI. The DSMI, DS Music Interface, team has just added support for OSC. You can now use your DS as generic OSC music controller over WiFi. OSC has TCP/IP support built in, so there is no need to run a host sever to talk to DSMI like you did when they only supported MIDI. We’ve seen OSC used in other projects like the monome. It’s also the basis for the multitouch communication protocol TUIO.

[via CDM]

Tbeta, Cross-platform Multitouch

November 28, 2008 by Eliot 5 Comments

[vimeo=http://vimeo.com/2034557]

tbeta is a new tool developed by the NUI Group Community. tbeta acts as an image processing layer to take in image data and output tracking data for multitouch applications. Whether FTIR or DI, scratch built multitouch systems generate IR video streams that need to be processed to find fingertips. tbeta can take this or any arbitrary video stream and run it through a series of filters to generate the touch data. This data is sent as OSC TUIO, a standard protocol for touch events. Along with the camera and input switcher, tbeta also aids in system calibration. I works on Windows, OSX, and Linux. Have a look at the getting started guide for a better idea of how it works.

[via CDM]

TISCH, Multitouch Framework

November 23, 2008 by Eliot 7 Comments

[floe] wrote in to tell us about his multitouch based thesis work. While many projects have focused on the hardware side of multitouch, TISCH is designed to promote the software side. TISCH is a multiplatform library that features hardware abstraction and gesture recognition. This takes a lot of weight off of widget developers since they can specify known library gestures instead of writing the exact motions from scratch. Using TISCH also means a standard set of gestures across multiple widgets, so the learning curve will be much easier when a user tries out a new app. If you’re researching multitouch, check out this project and help improve the codebase.