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Tobias Jettkowski


Tobias Jettkowski is responsible for the supervision of the laboratory and network administration of the Quality and Usability Lab (QU) and is teaching and researching in the areas of privacy, security and usability. He studied Communication Science, Lighting Engineering, Acoustical Engineering at the Technische Universität Berlin and began his work at the QU chair in January 2011 after recieving his Magister (Master) degree in December 2010. His thesis "New Multimodal Interaction Techniques for Mobile Devices" resulted in an application which uses a magnet and an iPhone to control a set of musical instruments.

Research Interests Privacy, Usability, Access Control, Media and Information Sharing, Social Networks, Visualization, (Effective) Usage of (Web) Technology (current and potential)


MagiMusic: Using Embedded Compass (Magnetic) Sensor for Touch-less Gesture Based Interaction with Digital Music Instruments in Mobile Devices
Zitatschlüssel ketabdar2011a
Autor Ketabdar, Hamed and JahanBekam, AmirHossein and Yuksel, Kamer Ali and Hirsch, Tobias
Buchtitel The Fifth International Conference on Tangible, Embedded and Embodied Interaction
Jahr 2011
Ort Madeira, Portugal
Monat jan
Zusammenfassung Playing musical instruments such as chordophones, percussions and keyboard types accompany with harmonic interaction of player's hand with the instruments. In this work, we present a novel approach that enables the user to imitate the music playing gestures around mobile devices. In our approach, touch-less gestures, which change magnetic field around the device, are employed for interaction. The activity of playing an instrument can be transparently pursued by moving a tiny magnet in hand around new generation of mobile phones equipped with embedded digital compass (magnetic sensor). The phonation intentions of the user can be simulated on the mobile device by capturing the gestural pattern using magnetic sensor. The proposed method allows digital imitation of a broad number of instruments while still being able to sense musical hits and relative plectrum gestures. It provides a framework for extending interaction space with music applications beyond physical boundaries of small mobile devices, and to 3D space around the device. This can allow for a more natural, comfortable and flexible interaction. We present several mobile music applications developed based on the proposed method for Apple iPhone 3GS.
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Tobias Jettkowski
Laboratory Supervisor
Quality and Usability Lab
Raum TEL 307 (T-Labs)
+49 30 8353 58656
Mo-Fr 9 a.m.-6 p.m.

Address of the chair

Quality and Usability Lab
TU Berlin
Sekr. TEL 18
Ernst-Reuter-Platz 7
10587 Berlin
tel: +49 30 8353 58231
fax: +49 30 8353 58409