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.

Authors: Jiang, Ziran; Sang, Jinqiu; Wang, Jie; Zheng, Chengshi; Zhang, Fangjie; Li, Xiaodong
Affiliations: 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.)
AES Convention: 143 (October 2017) Paper Number: 9819
Publication Date: October 8, 2017 Import into BibTeX
Subject: Perception
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=19216

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:   /conv/143/9819.pdf

Start a discussion about this paper!