Intelligibility vs. comprehension : understanding quality of accessible next-generation audio broadcast

Shirley, BG ORCID: https://orcid.org/0000-0001-9634-4489 and Ward, L 2019, 'Intelligibility vs. comprehension : understanding quality of accessible next-generation audio broadcast' , Universal Access in the Information Society . (In Press)

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Abstract

For traditional broadcasting formats, imple-mentation of accessible audio strategies for hard of hear-ing people have used a binary, intelligibility-based ap-proach. In this approach sounds are categorized eitheras speech, contributing to comprehension of content,or non-speech, which can mask the speech and reduceintelligibility. Audio accessibility solutions have there-fore focused on speech enhancement type methods, forwhich several useful standard objective measures of qual-ity exist. Recent developments in next-generation broad-cast audio formats, in particular the roll out of object-based audio, facilitate more in-depth personalisationof the audio experience based on user preferences andneeds. Recent research has demonstrated that manynon-speech sounds do not strictly behave as maskersbut can be critical for comprehension of the narrativefor some viewers. This complex relationship betweenspeech, non-speech audio and the viewer necessitate amore holistic approach to understanding quality of ex-perience of accessible media. This paper reviews pre-vious work and outlines such an approach, discussingaccessibility strategies using next-generation audio for-mats and their implications for developing effective as-sessments of quality.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title: Universal Access in the Information Society
Publisher: Springer
ISSN: 1615-5289
Depositing User: Dr Ben Shirley
Date Deposited: 05 Jul 2019 13:23
Last Modified: 08 Jul 2019 08:00
URI: http://usir.salford.ac.uk/id/eprint/51734

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