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1. |
Record Nr. |
UNINA9910146059503321 |
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Autore |
HeĢansler E. (Eberhard) |
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Titolo |
Acoustic echo and noise control : a practical approach / / Eberhard Haensler, Gerhard Schmidt |
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Pubbl/distr/stampa |
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Hoboken, New Jersey : , : Wiley-Interscience, , c2004 |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2005] |
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ISBN |
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1-280-27283-X |
9786610272839 |
0-470-31483-4 |
0-471-67839-2 |
0-471-67840-6 |
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Descrizione fisica |
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1 online resource (474 p.) |
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Collana |
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Adaptive and learning systems for signal processing, communications and control series ; ; 40 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Echo suppression (Telecommunication) |
Acoustical engineering |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references (p. 423-440) and index. |
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Nota di contenuto |
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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 |
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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. |
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Sommario/riassunto |
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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. |
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2. |
Record Nr. |
UNINA9910157550103321 |
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Autore |
Russell Mary |
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Titolo |
The Emergency Management Handbook / / Mary Russell |
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Pubbl/distr/stampa |
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Brentwood, TN : , : HCPro Incorporated, , 2015 |
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ISBN |
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Descrizione fisica |
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1 online resource (144 pages) |
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Disciplina |
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Soggetti |
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Emergency management |
Preparedness |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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3. |
Record Nr. |
UNIORUON00047299 |
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Titolo |
Amorous feelings for the Great Wall |
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Pubbl/distr/stampa |
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Beijing, : Audio & Video Co., [1990] |
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Descrizione fisica |
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videocassetta CRC ; 27 minuti |
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Classificazione |
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Soggetti |
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CINA - GRANDE MURAGLIA |
Cina - Minoranze etniche |
ETNOLOGIA - CINA |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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