Acoustical Zone Reproduction for Car Interiors Using a MIMO MSE Framework.

Simon Berthilsson (Widmark) , Annea Barkefors, Lars-Johan Brännmark, and Mikael Sternad , Uppsala University and Dirac Research AB.

Audio Engineering Society (AES) 48th International Conference, Munich, Germany, September 21-23, 2012.

Abstract:

The problem of dividing the listener space of a commercial series-production car into several acoustical zones is examined. The sound of each zone is to be isolated from the sounds of the other zones and may consist of e.g. music or speech.

A solution is proposed where the low frequency part of the problem is solved by the installed entertainment system speakers and the higher frequency part of the problem is solved by inexpensive local speakers.

This paper focuses on the low frequency part of the problem and presents a solution that generates a sound pressure di erence between all zones in excess of 10 dB for most frequencies in the range 70-400 Hz for an example problem.

Related publications:

PhD Thesis 2018 by Simon Widmark.

Licenciate thesis by Annea Barkefors, May 2014.

PhD Thesis Robust Sound Field Control for Audio Reproduction. A polynomial approach to discrete-time acoustic modeling and filter design
by Lars-Johan Brännmark, 2011.

Source:

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