发明名称 WAVE FIELD SYNTHESIS DEVICE AND METHOD FOR DRIVING AN ARRAY OF LOUDSPEAKERS
摘要 The invention relates to a wave field synthesis device for driving an array of loudspeakers with driver signals, whereby the loudspeakers are placed at different defined positions. A driver signal for a loudspeaker is based on a n audio signal, which is assigned to a virtual source having a virtual positio n with regard to the loudspeaker array, and on the defined position of the loudspeaker. Relevant loudspeakers of the loudspeaker array are firstly determined based on the position of the virtual source, a predefined listene r position, and on the defined positions of the loudspeakers so that artifacts caused by loudspeaker signals, which move opposite a direction of the virtua l source to the predefined listener position, are reduced. A device (24) for feeding the driver signal components for the relevant loudspeakers for the virtual source to the relevant loudspeakers is connected downstream from a device (20) for calculating the driver signal components for the relevant loudspeakers and for a virtual source, whereby no driver signal components f or the virtual source are fed to loudspeakers of the loudspeaker array that do not belong to the relevant loudspeakers. Artifacts in an area of the listene r space are hereby suppressed due to the generation of a wave field so that on ly the useful wavefield is heard without artifacts in this area.
申请公布号 CA2530626(A1) 申请公布日期 2004.12.29
申请号 CA20042530626 申请日期 2004.05.28
申请人 FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 发明人 SPORER, THOMAS;ROEDER, THOMAS;BRIX, SANDRA
分类号 H04S3/00;H04S7/00 主分类号 H04S3/00
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