Search Results for: MTmini

6,376 views 0 comments


Below consists of a handful of the most notable articles, press and recognition of my work. This includes MTmini, MTbiggie, Audiotouch, Community Core Vision, and NodeBeat.

MTBiggie Recognition

Audiotouch Recognition

Community Core Vision (CCV)

149,651 views 62 comments

Multitouch – How To

How To Make a Multitouch Surface

There are several ways to make a multitouch surface. There are capacitive, resistive, acoustic, and other non-traditional techniques. Our focus will be on optical techniques since they are the easiest and most cost effective for the average person to create. The most popular optical techniques are:

  • Frustrated Total Internal Reflection (ie. Perceptive Pixels)
  • Rear Diffused Illumination (ie. Microsoft Surface)
  • Front Diffused Illumination (ie. MTmini, MTbiggie)
  • Diffused Surface Illumination
  • Laser Light Plane
  • LED Light Plane

Optical Multitouch Techniques

Each technique utilizes 3 main components:

  1. Infrared Camera (or other optical sensor)
  2. Infrared light
  3. Visual Feedback (projector or LCD)

setup An infrared camera is pointed at the touch surface and detects when fingers/objects touch the surface.

13,417 views 18 comments

Bloom – Multitouch Music Application

Well, it’s about time I released another application right? If anyone has ever played Bloom on the iPhone, I’m sure you’ll recognize my port from iphone to table.

If you’re not familiar with bloom, it’s a very simple music creation application. Press anywhere on the screen to create circles that grow and ‘bloom.’ As they fade out and re-appear, they play a note. The note is based on the x-axis. As you move right, the notes go higher.

Click the above image to play

4,455 views 24 comments

Mac anyone? New multitouch tracker on it’s way!

Well, I haven’t posted in a while, but that doesn’t mean I’ve stopped development. Actually, I’ve done the opposite and have been developing with a release date coming soon (hopefully).

I applied for GSoC a couple months ago and my project was chosen and I am have been a student under Natural User Interface Group (NUIGroup) ever since. For my project, I’ve been working on a multitouch framework/lux.

For the last few weeks (with the help of my mentor Christian Moore) I’ve been working on porting over touchlib (the main tracker of the NUIGroup community) to openframeworks. A few reasons we chose to use openframeworks is because it’s (1) Cross-platform (it’ll work on windows/mac/linux), (2) It’s easy to

72,071 views 45 comments


AudioTouch is an interactive multi-touch interface for computer music exploration and collaboration. The interface features audio based applications that make use of multiple users and simultaneous touch inputs on a single multi-touch screen. A natural user interface where users can interact through gestures and movements, while directly manipulating musical objects, is a key aspect of the design; the goal is to be able to interact with the technology (specifically music based) in a natural way. Users can load, exit, and move musical applications using gestures as well as have a multiple applications operate within the same work environment. The design is built into a table that hides all the hardware necessary for tracking multiple inputs as well as displaying visual

8,334 views 48 comments

About Me

seth_bioHi, I’m Seth!

I think too much; therefore, I am too much (if you follow Descartes). Lucky, thinking comes in handy – most of the time.

People tell me I’m most notably known for creating the Multitouch Mini (MTmini), Audiotouch, being co-founder and developer of Community Core Vision  (CCV/tbeta) and former chief community offier of NUIGroup.

As a creative, I think it’s a rule that I’m not allowed to have a standard bio. However, if I did, it’d probably sound something like:

“My name is Seth Sandler and I am a musician, educator, researcher, developer, tinkerer and artist. I have a degree in Interdisciplinary Computing and the Arts with an emphasis in Music from the University of