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Dynamic audio reproduction with linear loudspeaker arrays

Dynamic audio reproduction with linear loudspeaker arrays
Dynamic audio reproduction with linear loudspeaker arrays
This paper describes the creation of dynamic filters for listener-adaptive reproduction with loudspeaker arrays. The proposed filters allow the delivery of two independent personalized signals to a pair of listeners or a binaural signal for a single listener. The filters are modified in real-time according to the listener position. This is obtained by expressing the impulse response of each filter as a network of variable gain-delay elements that are modified so that the filters adapt the reproduction to the listener position, assuming that each loudspeaker behaves as a point-source free-field monopole. The paper introduces the filter formulation, together with the signal processing scheme for a real-time implementation and measured performance for a listener-adaptive 28 loudspeaker linear array using an optical head-tracking system.
1549-4950
190-200
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Menzies, Dylan
0cc76abc-8a10-4b7f-96e5-56eceb0b2c5c
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Menzies, Dylan
0cc76abc-8a10-4b7f-96e5-56eceb0b2c5c
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807

Simon Galvez, Marcos, Menzies, Dylan and Fazi, Filippo (2019) Dynamic audio reproduction with linear loudspeaker arrays. Journal of the Audio Engineering Society, 67 (4), 190-200. (doi:10.17743/jaes.2019.0007).

Record type: Article

Abstract

This paper describes the creation of dynamic filters for listener-adaptive reproduction with loudspeaker arrays. The proposed filters allow the delivery of two independent personalized signals to a pair of listeners or a binaural signal for a single listener. The filters are modified in real-time according to the listener position. This is obtained by expressing the impulse response of each filter as a network of variable gain-delay elements that are modified so that the filters adapt the reproduction to the listener position, assuming that each loudspeaker behaves as a point-source free-field monopole. The paper introduces the filter formulation, together with the signal processing scheme for a real-time implementation and measured performance for a listener-adaptive 28 loudspeaker linear array using an optical head-tracking system.

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More information

Accepted/In Press date: 19 February 2019
e-pub ahead of print date: 5 April 2019

Identifiers

Local EPrints ID: 430336
URI: http://eprints.soton.ac.uk/id/eprint/430336
ISSN: 1549-4950
PURE UUID: 805cc931-7ab9-44a6-b3f0-fd942ed9c048
ORCID for Dylan Menzies: ORCID iD orcid.org/0000-0003-1475-8798

Catalogue record

Date deposited: 25 Apr 2019 16:30
Last modified: 21 Nov 2021 16:14

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