Opens in a new tab

AES E-Library

← Back to search

Conference Paper

Measured and Theoretical Performance Comparison of a Broadband Circular Microphone Array

Authors: Jin, Craig; Parthy, Abhaya; van Schaik, André

AES Conference: 31st International Conference: New Directions in High Resolution Audio · Paper 2 · June 2007

Abstract

We present a comparison of the measured and theoretical performance of a 24 microphone baffled circular microphone array. The signal-to-noise ratio of the circular microphone array is obtained by analysing the spatial aliasing error, the microphone placement error, and the white noise gain. The circular microphone array has a frequency range of operation from 50 Hz to 16 kHz, and we show that the order of the beamformer should be changed across frequency, so that the signal-to-noise ratio for the beamformed signal is above a specified threshold value for the entire frequency range of operation.

Details

Published in
AES Conference: 31st International Conference: New Directions in High Resolution Audio
Paper number
2
Publication date
June 6, 2007
Session subject
High Resolution Audio
Affiliation
The University of Sydney (See document for exact affiliation information.)
Type
Conference Paper