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THEORY AND DESIGN OF HIGH ORDER SOUND FIELD MICROPHONES USING SPHERICAL MICROPHONE ARRAY
 

Summary: THEORY AND DESIGN OF HIGH ORDER SOUND FIELD MICROPHONES USING
SPHERICAL MICROPHONE ARRAY
Thushara D. Abhayapala,
Department of Engineering, FEIT &
Department of Telecom Eng, RSISE
The Australian National University
Thushara.Abhayapala@anu.edu.au
Darren B. Ward
Department of EEE
Imperial College
London SW7 2BT, UK
d.ward@ic.ac.uk
ABSTRACT
A major problem in sound field reconstruction systems is
how to record the higher order (> 1) harmonic components
of a given sound field. Spherical harmonics analysis is used
to establish theory and design of a higher order recording
system, which comprises an array of small microphones
arranged in a spherical configuration and associated signal
processing. This result has implications to the advancement

  

Source: Abhayapala, Thushara D. - Department of Information Engineering, Australian National University

 

Collections: Computer Technologies and Information Sciences