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.
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), .
(doi:10.17743/jaes.2019.0007).
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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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
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Date deposited: 25 Apr 2019 16:30
Last modified: 16 Mar 2024 03:59
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