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Convention Paper

Plane Wave Identification with Circular Arrays by Means of a Finite Rate of Innovation Approach

Authors: Hoffmann, Falk-Martin; Fazi, Filippo Maria; Nelson, Philip

AES Convention 140 · Paper 9521 · May 2016

Abstract

Many problems in the field of acoustic measurements depend on the direction of incoming wave fronts w.r.t. a measurement device or aperture. This knowledge can be useful for signal processing purposes such as noise reduction, source separation, de-aliasing, and super-resolution strategies among others. This paper presents a signal processing technique for the identification of the directions of travel for the principal plane wave components in a sound field measured with a circular microphone array. The technique is derived from a finite rate of innovation data model and the performance is evaluated by means of a simulation study for different numbers of plane waves in the sound field.

Details

Published in
AES Convention 140
AES Convention
140
Paper number
9521
Publication date
May 6, 2016
Session subject
Audio Signal Processing: Beamforming, Upmixing, HRTF
Affiliation
University of Southampton, Southampton, UK (See document for exact affiliation information.)
Type
Convention Paper