Using a spherical microphone array for identification of airborne sound transmission paths

Authors

  • Bradford N. Gover Inst. for Research in Construction, National Research Council, Ottawa, Ont. K1A 0R6

Keywords:

Absorption, Arrays, Computational geometry, Glass fibers, Loudspeakers, Natural frequencies, Reverberation, Sound insulation, Beam pattern, Measurement system, Microphone arrays, Sound transmission

Abstract

The identification of airbone sound transmission path using a spherical microphone array was discussed. In the new technique ASTM E90 and E336 and ISO 140-3 and 140-4 provides means of rating the sound insulation performance of partitions in the laboratory or in the field. The present approach seems capable of identifying weak sports in a reliable and effective manner. The new technique was effective under condition of high reverberation and showed that the detectability of the defects varied with frequency.

Published

2004-09-01

How to Cite

1.
Gover BN. Using a spherical microphone array for identification of airborne sound transmission paths. Canadian Acoustics [Internet]. 2004Sep.1 [cited 2021Apr.13];32(3):174-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1684

Issue

Section

Proceedings of the Acoustics Week in Canada

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