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Engineering Brief Open Access

Sound Quality Improvement of MPEG-H 3D Audio Encoder

Authors: Kono, Akifumi; Honma, Hiroyuki; Chinen, Toru

AES Convention 149 · Paper 623 · October 2020

Abstract

In 2019, Sony launched 360 Reality Audio, which provides a new music experience using object-based spatial audio technology. Object-based audio contains information on time-varying object loudness and location and audio data, which are transmitted to playback devices, and then rendered and played back. It was reported in [1] that object locations affect the subjective sound pressure perception depending on the direction of the sound source. In this e-brief, we present an approach to increase the sound quality by considering the loudness and locations of objects. We perform a subjective listening test for three test items. The results indicate that two items had statistically significant differences in sound quality.

Details

Published in
AES Convention 149
AES Convention
149
Paper number
623
Publication date
October 6, 2020
Session subject
Audio Processing
Affiliation
Sony Corporation, R&D Center Tokyo Laboratory 20, Japan (See document for exact affiliation information.)
Type
Engineering Brief