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Three-channel crosstalk cancellation mode efficiency for sources in the far-field

Three-channel crosstalk cancellation mode efficiency for sources in the far-field
Three-channel crosstalk cancellation mode efficiency for sources in the far-field
The singular value decomposition is used to analyse the generalised modes of the radiation matrix for a symmetric three-channel crosstalk cancellation loudspeaker system assuming plane wave sources in free-field. The addition of a third centre source acts as a physical lossless regularisation that dramatically improves the efficiency of the in-phase mode. In addition, the singular value decomposition is used to analyse the source strength solution for a plane wave virtual source. The validity of the derived source strengths for real systems is shown by comparison of the analytical function to source strengths calculated using KEMAR head-related transfer functions. The analytical formula is shown to be accurate up to approximately 700 Hz in far-field and anechoic conditions.
Audio Engineering Society
Hamdan, Eric Carlos
4a342d37-7fa9-45a2-8e9a-0a1a428dba7e
Fazi, Filippo Maria
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Hamdan, Eric Carlos
4a342d37-7fa9-45a2-8e9a-0a1a428dba7e
Fazi, Filippo Maria
e5aefc08-ab45-47c1-ad69-c3f12d07d807

Hamdan, Eric Carlos and Fazi, Filippo Maria (2019) Three-channel crosstalk cancellation mode efficiency for sources in the far-field. In 2019 AES International Conference on Immersive and Interactive Audio. Audio Engineering Society. 10 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

The singular value decomposition is used to analyse the generalised modes of the radiation matrix for a symmetric three-channel crosstalk cancellation loudspeaker system assuming plane wave sources in free-field. The addition of a third centre source acts as a physical lossless regularisation that dramatically improves the efficiency of the in-phase mode. In addition, the singular value decomposition is used to analyse the source strength solution for a plane wave virtual source. The validity of the derived source strengths for real systems is shown by comparison of the analytical function to source strengths calculated using KEMAR head-related transfer functions. The analytical formula is shown to be accurate up to approximately 700 Hz in far-field and anechoic conditions.

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Published date: March 2019

Identifiers

Local EPrints ID: 428521
URI: http://eprints.soton.ac.uk/id/eprint/428521
PURE UUID: 205c1ca9-a8d8-40c9-84bf-98dea15a9823

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Date deposited: 01 Mar 2019 17:30
Last modified: 10 Nov 2020 17:32

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