Acoustic Echo and Noise Control / Adaptive and Cognitive Dynamic Systems: Signal Processing, Learning, Communications and Control Bd.1 (PDF)

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

EBERHARD HÄNSLER, Dr.-Ing., is Professor of Electrical
Engineering at the Darmstadt University of Technology, Darmstadt,
Germany.

GERHARD SCHMIDT, Dr.-Ing., is a Research Engineer at
Temic Speech Dialog Systems in Ulm, Germany.

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