Power consumption is an important issue while listening to music using portable audio devices. The authors have previously proposed a power-saving audio playback algorithm, which has adjusted filter-bank outputs according to our auditory characteristics. It succeeds in reducing power consumption but causes perceptual distortion. In this paper the power-saving audio playback algorithm is improved based on auditory masking, which attenuates audio components below the masking threshold. As a result of a listening test, it is confirmed that the proposed method is subjectively superior to the previous method with the same power consumption.

Authors: Nakashima, Tsukasa; Nakagawara, Mitsuhiro; Mizumachi, Mitsunori
Affiliations: Kyushu Institute of Technology, Fukuoka, Japan; Panasonic Corporation, Yokohama City, Kanagawa, Japan(See document for exact affiliation information.)
AES Convention: 146 (March 2019) Paper Number: 10164
Publication Date: March 10, 2019
Subject: Poster Session 2

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