An audio enhancement method in compressed domain - 文章详情页

作者：

Bao, Feng (Bao, Feng.) | Deng, Feng (Deng, Feng.) | Bao, Chang-Chun (Bao, Chang-Chun.) (学者：鲍长春) | Jia, Mao-Shen (Jia, Mao-Shen.)

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EI Scopus

摘要：

An　audio　enhancement　method　based　on　AAC　bitstream　is　proposed　in　this　paper.　First,　the　improved　weighted　recursive　averaging　(IWRA)　algorithm　is　introduced　to　estimate　the　noise.　Second,　the　β-order　minimum　mean-square　error　(β-MMSE)　enhancement　approach　is　employed　to　obtain　the　spectral　amplitude　of　audio　signals.　Finally,　the　IWRA　method　and　β-MMSE　method　are　applied　into　MPEG　AAC　codec　for　suppressing　the　noises　included　in　AAC　bitstream.　The　objective　and　subjective　listening　test　results　show　that　the　proposed　method　yields　good　noise　reduction　results,　the　performance　is　better　than　reference　methods.　©　2012　IEEE.

关键词：

Acoustic noise Audio acoustics Binary sequences Mean square error Signal processing

作者机构：

[ 1 ] [Bao, Feng]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Deng, Feng]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Bao, Chang-Chun]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Jia, Mao-Shen]School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

baofeng@emails.bjut.edu.cn

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