Seeing Sound: Sound Sensor Array with Optical Outputs

摘要

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 or other modifications. This paper presents methods for 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 sound fields, and simultaneous SPL data collection from multiple positions.