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A study on the effect of reflections and reverberation for low-channel-count Transaural systems

A study on the effect of reflections and reverberation for low-channel-count Transaural systems
A study on the effect of reflections and reverberation for low-channel-count Transaural systems
Cross-talk cancellation allows for the reproduction of binaural audio through loudspeakers. This uses a digital signal processing network that controls the acoustic pressure at the listener’s ears. Although this can be achieved by using only two drivers, loudspeaker arrays extend the operating frequency range and are more robust against mismatches between nominal and actual transducer transfer functions. This document presents a numerical study on the trade-off between cross-talk cancellation performance and the number of channels of a loudspeaker array in two practical room environments. A third order image source model is used to predict the performance of loudspeaker arrays using 2, 3, 4, 5 and 7 speakers. The simulated results show how low-order reflections and the reverberant pressure created by the loudspeaker arrays affect the cross-talk cancellation and the reproduced acoustic pressures. The results show that arrays using 5 sources or more can minimise colouration on the reproduced response and maximise the effectiveness of the cross-talk cancellation over the entire audio frequency range.
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Blanco Galindo, Miguel
66d53fc2-6adc-4dcb-b852-6e3ffc044b70
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Blanco Galindo, Miguel
66d53fc2-6adc-4dcb-b852-6e3ffc044b70
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807

Simon Galvez, Marcos, Blanco Galindo, Miguel and Fazi, Filippo (2019) A study on the effect of reflections and reverberation for low-channel-count Transaural systems. Inter-noise 2019, , Madrid, Spain. 16 Jun - 19 Aug 2019. 12 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Cross-talk cancellation allows for the reproduction of binaural audio through loudspeakers. This uses a digital signal processing network that controls the acoustic pressure at the listener’s ears. Although this can be achieved by using only two drivers, loudspeaker arrays extend the operating frequency range and are more robust against mismatches between nominal and actual transducer transfer functions. This document presents a numerical study on the trade-off between cross-talk cancellation performance and the number of channels of a loudspeaker array in two practical room environments. A third order image source model is used to predict the performance of loudspeaker arrays using 2, 3, 4, 5 and 7 speakers. The simulated results show how low-order reflections and the reverberant pressure created by the loudspeaker arrays affect the cross-talk cancellation and the reproduced acoustic pressures. The results show that arrays using 5 sources or more can minimise colouration on the reproduced response and maximise the effectiveness of the cross-talk cancellation over the entire audio frequency range.

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A study on the effect of reflections and reverberation for low-channel-count Transaural systems - Accepted Manuscript
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More information

Published date: 2019
Venue - Dates: Inter-noise 2019, , Madrid, Spain, 2019-06-16 - 2019-08-19

Identifiers

Local EPrints ID: 433159
URI: http://eprints.soton.ac.uk/id/eprint/433159
PURE UUID: c2d4bb63-f3d0-4bd1-ad30-0e3b36d32880

Catalogue record

Date deposited: 09 Aug 2019 16:30
Last modified: 21 Nov 2021 17:32

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Contributors

Author: Miguel Blanco Galindo
Author: Filippo Fazi

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