Language selection

Government of Canada / Gouvernement du Canada

Search

Designing a spherical microphone array for the directional analysis of reflections and reverberation

From National Research Council Canada

Download
  1. (PDF, 711 KiB)
AuthorSearch for: 1; Search for: ; Search for:
Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceAudio Engineering Society 115th Convention, 10 October 2003, New York, N.Y.
Subjectmicrophone array; reverberation; diffuseness; Acoustics
Abstract
Spherical microphone array designs were investigated from the point of view of suitability for directionalanalysis of reverberant sound fields. Four array geometries (tetrahedron, cube, dodecahedron, geodesicsphere) were considered. Beamforming filters were designed using a constrained gain maximization process.The theoretical performance of each array was then predicted. A room acoustic simulator was used to helpassess sufficient directionality and evaluate the suitability of each design. A 32-element geodesic sphere arraywas constructed and used to make directional measurements in real sound fields.
Publication date
In
  • Audio Engineering Society 115th Convention [Proceedings] (1 October 2003): 1–11.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 46626
NRC-IRC-15765
NPARC number20378488
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifierc50280c7-e6d7-4fab-9bf7-fce6f6bd5988
Record created2012-07-24
Record modified2021-01-05
Date modified: