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Communication Dans Un Congrès Année : 2004

Multi-Actuator Panel (MAP) loudspeakers: how to compensate for their mutual reflections?

Résumé

Wave Field Synthesis (WFS) allows reproducing the spatial and temporal properties of a target sound field over a large listening area. Thanks to their screen shape, Multi-Actuator Panels (MAP) represent a good alternative for WFS reproduction in multimedia installations. However, MAP speakers act as reflectors for acoustic waves which disturb the perception of the target soundfield. A general listening room compensation technique is proposed, based on multichannel inversion, that allows attenuating early reflections caused by a reflector using loudspeakers integrated into this reflector (e.g. MAP loudspeakers). After an analysis of the geometrical arrangement of the panels, the method processes separately the free field equalization of the loudspeaker array and the reflection compensation. Simulation and measurements show that the attenuation is effective over the entire listening area.
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Dates et versions

hal-01107118 , version 1 (20-01-2015)

Identifiants

  • HAL Id : hal-01107118 , version 1

Citer

Rik von Zon, Étienne Corteel, Diemer de Vries, Olivier Warusfel. Multi-Actuator Panel (MAP) loudspeakers: how to compensate for their mutual reflections?. 116th convention of the Audio Engineering Society, May 2004, Berlin, Allemagne. ⟨hal-01107118⟩
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