Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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Designing a Tangible MIDI-Controller for Multi-Touch Surfaces


DJing started with playing vinyl discs on turntables but nowadays most DJs are mixing music with software that they control with MIDI-controllers. Those controllers have different shapes ranging from a keyboard to a mixer. Multi-touch-surfaces are becoming more affordable and accessible and could be the next step forward in DJing. Musicians do not have to bring all their MIDI-controllers any longer because they can create their own layouts for different tasks like mixing or live performances. Musicians can easily switch between these layouts during their performance, however a major problem of touch-interaction is the loss of tactile feedback. Tangibles are objects recognized by the touch-screen that enable a more intuitive way of interacting with the touch-surface and they could solve this problem. The goal of this thesis is to design a MIDI-controller on a touch-screen for controlling DJing software and digital audio workstations with a tangible user interface.


tangibles_scaled.jpg fader_scaled.jpg

For the tangibles, we used wooden toy building blocks with markers for the Samsung Sur 40. This tangible sends MIDI-messages when you slide it over the screen. It can be used similar to a fader or a knob found on conventional MIDI-controllers.



The tangibles spawn different touch-controls. Here you can see a wheel, pads, a knob, a slider and the file tangible.

Building a Layout

participant_scaled.jpg layout_scaled.jpg

A participant of the user study building a layout with the tangibles. And the result in action.

Edit | Attach | Refresh | Diffs | More | Revision r1.4 - 21 Sep 2015 - 11:03 - JanoschKindl