Microphone recording in a room is ideally carried out by using a close distance microphone to prevent reverberation and noise annoyances, but this restricts the flexibility and the surface covered by the recording. When using multiple distant microphones, a microphone selection algorithm is needed for selecting the momentarily best microphone, namely the one with the least reverberation. Given several microphones arbitrarily distributed in a room, this paper describes an algorithm which, based on an estimation of the direct-to-reverberation ratio for each microphone, switches to the best microphone. The algorithm allows prioritizing a microphone and compensation of different directivity patterns.

Authors: Favrot, Alexis; Faller, Christof
Affiliations: Illusonic GmbH, Zürich, Switzerland; Illusonic GmbH, Uster, Zürich, Switzerland; EPFL, Lausanne, Switzerland(See document for exact affiliation information.)
AES Convention: 143 (October 2017) Paper Number: 9906
Publication Date: October 8, 2017
Subject: Sound Reinforcement & Acoustics

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