Characterization of acoustic spaces frequently involves taking SPL measurements at numerous locations within the space. Such measurements typically require relocation of the measurement apparatus, or multiple microphones wired to a multiplexer. This approach can be time consuming, especially if it must be repeated after changes in speaker location, acoustical treatments of other modifications. This paper presents methods of visualizing both standing waves in rooms and loudspeaker coverage uniformity in outdoor venues, using an array of sound sensors with optical (visible light) output. This new approach allows for rapid visual observation of soundfields, and simultaneous SPL data collection from multiple positions.

Authors: Benjamin, Eric; Seagrave, Charles
Affiliations: Seagrave Instruments, San Rafael, CA, USA; Surround Research, Pacifica, CA, USA(See document for exact affiliation information.)
AES Convention: 129 (November 2010) Paper Number: 8231
Publication Date: November 4, 2010
Subject: Audio Equipment and Measurement

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