Objective sound quality comparison based on higher-order statistics for nonlinear noise reduction methods (応用音響)
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概要
- 論文の詳細を見る
In this paper, we reveal new findings about the generated musical noise in minimum mean-square error short-time spectral amplitude (MMSE STSA) processing. Recently we have proposed a objective metric of musical noise based on kurtosis change ratio on spectral subtraction (SS). Also we found an interesting relationship among the degree of generated musical noise, the shapes of signal's probability density function, the strength parameter of SS processing. This paper is aimed to automatically evaluate the sound quality of various types of noise reduction methods using kurtosis change ratio. We give a mathematical analysis based on higher-order statistics viewpoint, and lead to a valuable relation in that MMSE STSA has a weakness in speech period distortion rather than noise period, and vice versa in SS.
- 社団法人電子情報通信学会の論文
- 2009-01-22
著者
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SARUWATARI Hiroshi
Nara Institute of Science and Technology
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SHIKANO Kiyohiro
Nara Institute of Science and Technology
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Shikano K
Chiba University And National Institute Of Information And Communications Technology
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UEMURA Yoshihisa
Nara Institute of Science and Technology Graduate University
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TAKAHASHI Yu
Nara Institute of Science and Technology Graduate University
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KONDO Kazunobu
Yamaha Corp. Center for Advanced Sound Technologies
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TAKAHASHI Yu
Graduate school of Information Science, Nara Institute of Science and Technology
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KONDO Kazunobu
SA Group, Center for Advanced Sound Technologies, Yamaha Corp.
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Takahashi Yu
Nara Inst. Of Sci. And Technol. Nara
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Kondo Kazunobu
Yamaha Corporate Reserch & Dev. Center Shizuoka Jpn
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Sawada H
Graduate School Of Information Science Nara Institute Of Science And Technology
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