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Interactive real-time implementations of Higher Order Ambisonics to binaural rendering using VISR

Interactive real-time implementations of Higher Order Ambisonics to binaural rendering using VISR
Interactive real-time implementations of Higher Order Ambisonics to binaural rendering using VISR
This work presents the implementation and experimental validation of an interactive binaural renderer that uses spherical microphone array recordings. The plane wave density function is used to represent the sound field. One implementation using a complete head-related transfer function dataset and one using a spatially re-sampled set are considered. System’s performance is measured based on interaural time and level differences. Static performance validation is given by comparison to an established database. For the dynamic case, a real-time implementation using a head tracker is done. Good agreement is seen for interaural time differences. Significant errors for interaural level differences are found above the spatial aliasing frequency. The spatially re-sampled set implementation improves high-frequency content without affecting interaural time and level differences.
Ruiz, Santiago
7262b42e-fc06-4b1f-a065-c6c2c5267be6
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Hoffmann, Falk-Martin
b5b5b465-9ff4-4eb5-845e-c36c6d1c9b97
Murillo, Diego M.
af8f1a23-7ac8-4a70-b558-a214712247e5
Ruiz, Santiago
7262b42e-fc06-4b1f-a065-c6c2c5267be6
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Hoffmann, Falk-Martin
b5b5b465-9ff4-4eb5-845e-c36c6d1c9b97
Murillo, Diego M.
af8f1a23-7ac8-4a70-b558-a214712247e5

Ruiz, Santiago, Fazi, Filippo, Hoffmann, Falk-Martin and Murillo, Diego M. (2019) Interactive real-time implementations of Higher Order Ambisonics to binaural rendering using VISR. Audio Engineering Society Conference on Immersive and Interactive Audio, , York, United Kingdom. 27 - 29 Mar 2019.

Record type: Conference or Workshop Item (Paper)

Abstract

This work presents the implementation and experimental validation of an interactive binaural renderer that uses spherical microphone array recordings. The plane wave density function is used to represent the sound field. One implementation using a complete head-related transfer function dataset and one using a spatially re-sampled set are considered. System’s performance is measured based on interaural time and level differences. Static performance validation is given by comparison to an established database. For the dynamic case, a real-time implementation using a head tracker is done. Good agreement is seen for interaural time differences. Significant errors for interaural level differences are found above the spatial aliasing frequency. The spatially re-sampled set implementation improves high-frequency content without affecting interaural time and level differences.

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More information

Published date: 2019
Venue - Dates: Audio Engineering Society Conference on Immersive and Interactive Audio, , York, United Kingdom, 2019-03-27 - 2019-03-29

Identifiers

Local EPrints ID: 429942
URI: http://eprints.soton.ac.uk/id/eprint/429942
PURE UUID: 0c058c3c-cb2a-4a77-9c32-3012ee1c013b
ORCID for Falk-Martin Hoffmann: ORCID iD orcid.org/0000-0003-2925-2124

Catalogue record

Date deposited: 09 Apr 2019 16:30
Last modified: 26 Nov 2021 02:27

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Contributors

Author: Santiago Ruiz
Author: Filippo Fazi
Author: Falk-Martin Hoffmann ORCID iD
Author: Diego M. Murillo

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