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Convention Paper

Bandwidth Extension Method Based on Generative Adversarial Nets for Audio Compression

Authors: Huang, Qingbo; Wu, Xihong; Qu, Tianshu

AES Convention 144 · Paper 9954 · May 2018

Abstract

The compression ratio of core-encoder can be improved significantly by reducing the bandwidth of the audio signal, resulting in the poor listening perception. This paper proposes a bandwidth extension method based on generative adversarial nets (GAN) for extending the bandwidth of an audio signal, to create a more natural sound. The method uses GAN as a generative model to fit the distribution of the MDCT coefficients of the audio signals in the high-frequency components. Through minimax two-player gaming, more natural high-frequency information can be estimated. On this basis, a codec system is built up. To evaluate the proposed bandwidth extension system the MUSHRA experiments were carried on and the results show that there is comparable performance with HE-AAC.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
9954
Publication date
May 6, 2018
Session subject
Audio Coding, Analysis, and Synthesis
Affiliation
Peking University, Beijing, China (See document for exact affiliation information.)
Type
Convention Paper