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Convention Paper

Extended Bass Management Methods for Cost-Efficient Immersive Audio Reproduction in Digital Cinema

Authors: Hirvonen, Toni; Robinson, Charles Q.

AES Convention 140 · Paper 9595 · May 2016

Abstract

New, more sophisticated cinema audio formats have recently been developed and deployed that provide a more immersive sound field for the audience members. This paper discusses techniques that can reduce the economic costs associated with the installation and maintenance of the audio reproduction devices in contemporary immersive digital cinema, while best retaining the benefits of these new formats. The focus of this paper is novel bass management techniques that enable the use of cost-effective loudspeakers. These proposed bass processing methods take advantage of the reduced spatial saliency of low frequency audio and allow for a reduced spatial resolution for audio signals in that range. We present subjective tests conducted in a state of the art cinema installation that illustrate the effects of the proposed solutions on sound quality. Some of the these techniques have been incorporated to the future version of the Dolby Atmos cinema specification.

Details

Published in
AES Convention 140
AES Convention
140
Paper number
9595
Publication date
May 6, 2016
Session subject
Immersive Audio
Affiliation
Dolby Laboratories, Stockholm, Sweden; Dolby Laboratories, San Francisco, CA, USA (See document for exact affiliation information.)
Type
Convention Paper