Design and evaluation of personal audio systems based on speech privacy constraints
Design and evaluation of personal audio systems based on speech privacy constraints
Personal Audio refers to the generation of spatially distinct sound zones that allow individuals within a shared space to listen to their own audio material without affecting, or being affected, by others. Recent interest in such systems has focussed on their performance in public spaces where speech privacy is desirable. To achieve this goal, speech is focussed towards the target listener and a masking signal is focussed into the area where the target speech signal
could otherwise be overheard. An effective masking signal must substantially reduce the intelligibility in this region without becoming an annoyance to those nearby. To assess these perceptual requirements, listening tests were carried out using two examples of loudspeaker arrays with different spatial aliasing characteristics, to determine the impacts of different masking signal spectra on speech intelligibility and subjective preference. The results of these tests were used, alongside objective and subjective metrics, to form a design specification for private personal audio systems.
2271-2282
Wallace, Daniel
ef3e070e-d641-48ac-8e5b-fe083131ee86
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
April 2020
Wallace, Daniel
ef3e070e-d641-48ac-8e5b-fe083131ee86
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Wallace, Daniel and Cheer, Jordan
(2020)
Design and evaluation of personal audio systems based on speech privacy constraints.
Journal of the Acoustical Society of America, 147 (4), .
(doi:10.1121/10.0001065).
Abstract
Personal Audio refers to the generation of spatially distinct sound zones that allow individuals within a shared space to listen to their own audio material without affecting, or being affected, by others. Recent interest in such systems has focussed on their performance in public spaces where speech privacy is desirable. To achieve this goal, speech is focussed towards the target listener and a masking signal is focussed into the area where the target speech signal
could otherwise be overheard. An effective masking signal must substantially reduce the intelligibility in this region without becoming an annoyance to those nearby. To assess these perceptual requirements, listening tests were carried out using two examples of loudspeaker arrays with different spatial aliasing characteristics, to determine the impacts of different masking signal spectra on speech intelligibility and subjective preference. The results of these tests were used, alongside objective and subjective metrics, to form a design specification for private personal audio systems.
Text
Design and Evaluation of Personal Audio Systems based on Speech Privacy Constraints
- Accepted Manuscript
Text
Design and evaluation of personal audio systems based on speech privacy constraints
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Accepted/In Press date: 23 March 2020
e-pub ahead of print date: 16 April 2020
Published date: April 2020
Identifiers
Local EPrints ID: 439056
URI: http://eprints.soton.ac.uk/id/eprint/439056
ISSN: 0001-4966
PURE UUID: 2f4b9ff7-fb07-42fa-94e4-0f3ee4413337
Catalogue record
Date deposited: 02 Apr 2020 16:31
Last modified: 30 Nov 2024 05:07
Export record
Altmetrics
Contributors
Author:
Daniel Wallace
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics