Studies on dereverberation of acoustic signals based on sub-band signal processing 帯域分割処理を用いた音響信号の残響回復に関する研究
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著者
書誌事項
- タイトル
-
Studies on dereverberation of acoustic signals based on sub-band signal processing
- タイトル別名
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帯域分割処理を用いた音響信号の残響回復に関する研究
- 著者名
-
王, 紅
- 著者別名
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ワン, ホン
- 学位授与大学
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名古屋大学
- 取得学位
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博士 (工学)
- 学位授与番号
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甲第2781号
- 学位授与年月日
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1993-03-25
注記・抄録
博士論文
目次
- Abstract / p1 (0004.jp2)
- Contents / p5 (0006.jp2)
- 1 Introduction / p8 (0008.jp2)
- 1.1 Brief History / p8 (0008.jp2)
- 1.2 The Problems / p9 (0008.jp2)
- 1.3 A Brief Review of Previous Approaches / p10 (0009.jp2)
- 1.4 Basic Idea of This Thesis / p12 (0010.jp2)
- 1.5 Thesis Outline / p14 (0011.jp2)
- 2 Description and Evaluation of Reverberation Enclosure / p16 (0012.jp2)
- 2.1 Reverberation Model / p16 (0012.jp2)
- 2.2 Principle of MTF-STI / p17 (0012.jp2)
- 2.3 Relation between Reverberation Time and Speech Transmission Index / p18 (0013.jp2)
- 2.4 Degradation of Intelligibility and Recognition Rate under Reverberation / p18 (0013.jp2)
- 3 Sub-band Analysis-Synthesis System and the Optimum Filters / p21 (0014.jp2)
- 3.1 The Construction of the Sub-band Analysis-Synthesis System / p21 (0014.jp2)
- 3.2 Evaluation Measure of the System / p24 (0016.jp2)
- 3.3 System Performance of Using Different Kinds of Analysis-Synthesis Filters / p25 (0016.jp2)
- 4 Single Microphone Sub-band Inverse Filtering and Zero Distribution of the Acoustic Transfer Function / p32 (0020.jp2)
- 4.1 The Sub-band Inverse Filtering Method / p33 (0020.jp2)
- 4.2 Experimental Conditions / p35 (0021.jp2)
- 4.3 Results / p37 (0022.jp2)
- 4.4 Discussions / p52 (0030.jp2)
- 4.5 Conclusions / p53 (0030.jp2)
- 5 Multi-microphone Sub-band Inverse Filtering / p54 (0031.jp2)
- 5.1 Multi-microphone Sub-band Inverse Filtering by Sub-band Selection / p55 (0031.jp2)
- 5.2 Sub-band Inverse Filtering by Multi-microphone Optimum Weighting / p59 (0033.jp2)
- 5.3 Experimental Conditions / p62 (0035.jp2)
- 5.4 Results / p63 (0035.jp2)
- 5.5 Discussions / p88 (0048.jp2)
- 5.6 Conclusions / p90 (0049.jp2)
- 6 Implementation of Multi-microphone Dereverberation Approach as a Preprocessor to the Word Recognition System / p92 (0050.jp2)
- 6.1 The Recognition System / p93 (0050.jp2)
- 6.2 Experimental Conditions / p95 (0051.jp2)
- 6.3 The Results / p96 (0052.jp2)
- 6.4 Discussions / p105 (0056.jp2)
- 6.5 Conclusions / p105 (0056.jp2)
- 7 Conclusions / p107 (0057.jp2)
- A Toeplitz Recursive Algorithm for Solving Complex Normal Equations / p109 (0058.jp2)
- A.1 Derivation of the Recursive Formulas / p110 (0059.jp2)
- A.2 The Recursive Algorithm / p112 (0060.jp2)
- B Reverberation Time Measurement of ATR Variable Reverberation Time Room / p113 (0060.jp2)
- C The Time Stretched Pulse (TSP) Signal / p122 (0065.jp2)
- D Calculation of the Distribution of Zeros / p124 (0066.jp2)
