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An Approach for Multichannel Recording and Reproduction of Sound Source Directivity

Current holophonic sound systems allow the creation and free positioning of virtual sound sources. But only few systems incorporate the directivity characteristics of natural sources, virtual sources are mostly monopoles. Especially in the case of auditory scenes with a high degree of freedom for source and listener positioning, the reproduction of directivities is desirable. This paper presents an approach for the efficient multichannel capturing of source directivities, as well as a suitable reproduction technique which creates a sound field approximating the directional radiation of the real source. The performance of this system, which is based on Wave Field Synthesis, has been examined by means of dedicated measurements and listening tests from recordings of brass instruments.

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