CUBE Lecture mit Falk-Martin Hoffmann

CUBE Lecture mit Falk-Martin Hoffmann

erstellt am 21. Oktober 2016

am Freitag dem 21. Oktober um 10 Uhr im CUBE

Beamforming for Personal Sound Zone Control with Compact Loudspeaker Arrays

Compact loudspeaker arrays have become a widely used tool to control sound fields for delivery of personal audio content. Unlike dedicated multichannel installations (5.1, 7.1, etc.) or binaural systems, loudspeaker arrays typically rely on beamforming techniques that enable artificial recreation of the function principle of other systems, also by making use of the acoustic environment. In principle they also allow for sound field control over multiple personal sound zones, yet in practice a tradeoff needs to be made between signal quality and channel separation. In any case, the performance of such systems improves with the knowledge of the surrounding environment. It is shown that simple features of a room can be incorporated in the acoustic model of the system by the introduction of specific boundary conditions. The advantage of such a model is the inclusion of room reflections and making them a part of the system, thus reducing the amount of acoustic treatment needed to reduce the room’s acoustic response.

Falk-Martin Hoffmann is Postgraduate Research Student at the Institute of Sound and Vibration Research of the University of Southampton
Falk-Martin graduated with a Dipl.-Ing. degree in Electrical Engineering and Information Technology from the Ruhr-Universität Bochum, Germany, in November 2011. He then joined the EU-funded AUDIS project as a Marie Curie Research Fellow at the Hearing and Balance Centre of the University of Southampton, UK, in January 2012. From October 2012 until June 2013, he was a Research Associate at the Institute of Communication Acoustics at the Ruhr-Universität Bochum, Germany. Falk-Martin is currently a Postgraduate Research Student in the Acoustics Group of the ISVR. His major research focus lies on the development of acoustic models and signal processing for cylindrical acoustic transducer arrays.


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