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Convention Paper

An Audio Loudness Compression and Compensation Method for Miniature Loudspeaker Playback

Authors: Jiang, Ziran; Sang, Jinqiu; Wang, Jie; Zheng, Chengshi; Zhang, Fangjie; Li, Xiaodong

AES Convention 143 · Paper 9819 · October 2017

Abstract

Audio playback through miniature loudspeakers is bounded by the loudspeaker’s limited dynamic range. How to compress the audio and simultaneously preserve the original artistic effect is worthy of study. Traditional peak-based and RMS-based dynamic range compression (DRC) methods do not consider the audio loudness characteristic that may influence the perceptual artistic effect. This paper proposes a novel compression and compensation method based on Zwicker’s loudness model and equal-loudness contours. The proposed method aims to provide a high-quality audio playback by mapping the audio’s loudness to a smaller range, while preserving the perceived spectral balance of the original audio. Subjective listening tests are performed to demonstrate the benefits of the proposed method.

Details

Published in
AES Convention 143
AES Convention
143
Paper number
9819
Publication date
October 6, 2017
Session subject
Perception
Affiliation
Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China; Institute of Acoustics, Chinese Academy of Science, Beijing, China; Guangzhou University, Guangzhou, China; Chinese Academy of Sciences, Beijing, China; Chinese Academy of Sciences, Shanghai, China; Institute of Acoustice, Chinese Academy of Science, Beijing, China (See document for exact affiliation information.)
Type
Convention Paper