Article

Source directivity measurement equipment: a system of 256 channels (en)

Authors

* Presenting author
Day / Time: 08.03.2023, 09:00-09:20
Room: Saal X11-12
Typ: Regulärer Vortrag
Session: Virtuelle Akustik 1
Abstract: Recent source directivity measurement systems took benefits from the microphone industry which produced affordable yet technically sound devices developed with the Micro-Electro-Mechanical Systems (MEMS) technology. It has become possible to use a large number of sensors located around a sound source to increase the spatial resolution, hence the accuracy of directivity measurements. This paper presents the design of a measurement equipment composed of 256 channels. Several geometries of sensor distribution around the sound source are discussed in terms of sensitivity and accuracy of the obtained directivity patterns, as compared to a reference source directivity. Finally, preliminary measurements of various sound sources such as loudspeakers and the human voice are presented.
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