Acoustic Echo and Noise Control: A Practical Approach (Hardcover)

E. Hansler, Gerhard Schmidt

Acoustic Echo and Noise Control: A Practical Approach (Hardcover)
  • 出版商: Wiley
  • 出版日期: 2004-05-27
  • 售價: $5,970
  • 貴賓價: 9.5 折 $5,672
  • 語言: 英文
  • 頁數: 444
  • 裝訂: Hardcover
  • ISBN: 0471453463
  • ISBN-13: 9780471453468

    • 海外代購書籍(需單獨結帳)

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商品描述

Description:

Authors are well known and highly recognized by the "acoustic echo and noise community."
Presents a detailed description of practical methods to control echo and noise
Develops a statistical theory for optimal control parameters and presents practical estimation and approximation methods

 

Table of Contents:

List of Figures.

List of Tables.

Preface.

Acknowledgments.

Abbreviations and Acronyms.

Part I: Basics.

1 Introduction.

1.1 Some History.

1.2 Overview of the Book.

2 Acoustic Echo and Noise Control Systems.

2.1 Notation.

2.2 Applications.

3 Fundamentals.

3.1 Signals.

3.2 Acoustic Echoes.

3.3 Standards.

Part II: Algorithms.

4 Error Criteria and Cost Functions.

4.1 Error Criteria for Adaptive Filters.

4.2 Error Criteria for Filter Design.

4.3 Error Criteria for Speech Processing and Control Purposes.

5 Wiener Filter.

5.1 Time-Domain Solution.

5.2 Frequency-Domain Solution.

6 Linear Prediction.

6.1 Normal Equations.

6.2 Levinson{Durbin Recursion.

7 Algorithms for Adaptive Filters.

7.1 The Normalized Least Mean Square Algorithm.

7.2 The Affine Projection Algorithm.

7.3 The Recursive Least Squares Algorithm.

7.4 The Kalman Algorithm.

Part III: Acoustic Echo and Noise Control.

8 Traditional Methods for Stabilization of Electroacoustic Loops.

8.1 Adaptive Line Enhancement.

8.2 Frequency Shift.

8.3 Controlled Attenuation.

9 Echo Cancellation.

9.1 Processing Structures.

9.2 Stereophonic and Multichannel Echo Cancellation.

10 Residual Echo and Noise Suppression.

10.1 Basics.

10.2 Suppression of Residual Echoes.

10.3 Suppression of Background Noise.

10.4 Combining Background Noise and Residual Echo Suppression.

11 Beamforming.

11.1 Basics.

11.2 Characteristics of Microphone Arrays.

11.3 Fixed Beamforming.

11.4 Adaptive Beamforming.

Part IV: Control and Implementation Issues.

12 System Control—Basic Aspects.

12.1 Convergence versus Divergence Speed.

12.2 System Levels for Control Design.

13 Control of Echo Cancellation Systems.

13.1 Pseudooptimal Control Parameters for the NLMS Algorithm.

13.2 Pseudooptimal Control Parameters for the Affine Projection Algorithm.

13.3 Summary of Pseudooptimal Control Parameters.

13.4 Detection and Estimation Methods.

13.5 Detector Overview and Combined Control Methods.

14 Control of Noise and Echo Suppression Systems.

14.1 Estimation of Spectral Power Density of Background Noise.

14.2 Musical Noise.

14.3 Control of Filter Characteristics.

15 Control for Beamforming.

15.1 Practical Problems.

15.2 Stepsize Control.

16 Implementation Issues.

16.1 Quantization Errors.

16.2 Number Representation Errors.

16.3 Arithmetical Errors.

16.4 Fixed Point versus Floating Point.

16.5 Quantization of Filter Taps.

Part V: Outlook and Appendixes.

17 Outlook.

Appendix A: Subband Impulse Responses.

A.1 Consequences for Subband Echo Cancellation.

A.2 Transformation.

A.3 Concluding Remarks.

Appendix B: Filterbank Design.

B.1 Conditions for Approximately Perfect Reconstruction.

B.2 Filter Design Using a Product Approach.

B.3 Design of Prototype Lowpass Filters.

B.4 Analysis of Prototype Filters and the Filterbank System.

References.

Index.

商品描述(中文翻譯)

描述：
作者在“聲學回音和噪音社區”中享有盛譽並廣受認可。
提供了控制回音和噪音的實用方法的詳細描述。
發展了一個統計理論，用於最佳控制參數，並提供了實用的估計和近似方法。

目錄：
圖表清單。
表格清單。
前言。
致謝。
縮寫和首字母縮略詞。
第一部分：基礎知識。
1. 簡介。
1.1 一些歷史。
1.2 本書概述。
2. 聲學回音和噪音控制系統。
2.1 符號表示。
2.2 應用。
3. 基礎知識。
3.1 信號。
3.2 聲學回音。
3.3 標準。
第二部分：算法。
4. 錯誤標準和成本函數。
4.1 自適應濾波器的錯誤標準。
4.2 濾波器設計的錯誤標準。
4.3 語音處理和控制目的的錯誤標準。
5. 維納濾波器。
5.1 時域解法。
5.2 頻域解法。
6. 線性預測。
6.1 正規方程。
6.2 Levinson-Durbin遞迴。
7. 自適應濾波器的算法。
7.1 正規化最小均方算法。
7.2 仿射投影算法。
7.3 遞迴最小二乘算法。
7.4 卡爾曼算法。
第三部分：聲學回音和噪音控制。
8. 電聲環路穩定的傳統方法。
8.1 自適應線增強。
8.2 頻率偏移。
8.3 控制衰減。
9. 回音消除。
9.1 處理結構。
9.2 立體聲和多聲道回音消除。
10. 殘餘回音和噪音抑制。

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