FIELD: physics.
SUBSTANCE: invention relates to means of synthesizing a spatially extended sound source. Audio scene description is received, which contains data of spatially extended sound sources for the spatially extended sound source and modification data for a potentially modifying object. Listener data is received. Restricted modified spatial sector is identified for a spatially extended sound source in the rendering range for the listener, wherein the rendering range for the listener is greater than the restricted modified spatial sector, based on the data of the spatially extended sound sources and the data on the modification. Rendering target data are calculated from one or more rendering data elements belonging to the modified restricted spatial sector. Audio signal representing a spatially extended sound source is processed using the rendering target data.
EFFECT: high efficiency of synthesizing a spatially extended sound source.
22 cl, 14 dwg
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