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The Localisation of a Sound Source in a Reverberant Room Using Arrays of Microphones

This work is aimed at the problem of continuously measuring and predicting the impulse response within a reverberant room using sources-of-opportunity. The target application is that of compensating a sound reproduction system for variations in room acoustics and the non-ideal placement of the loudspeakers. The prediction of the impulse responses corresponding to the locations of an arbitrary number of listeners requires knowledge of the room geometry and the acoustic impedance of the boundaries. The room geometry may be obtained by estimating the image locations of a source. This has been addressed by the use of small arrays, with novel geometry, and processing both angular and temporal measurements. Preliminary practical results are presented and compared to theoretical predictions.

Authors: Collins, Tim; Roper, Simon
Affiliation: The University of Birmingham
AES Conference:31st International Conference: New Directions in High Resolution Audio (June 2007)
Paper Number:28 Import into BibTeX
Subject:High Resolution Audio

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