{"product_id":"voice-compression-and-communications-principles-and-applications-for-fixed-and-wireless-channels-hardback-9780471150398","title":"Voice Compression and Communications; Principles and Applications for Fixed and Wireless Channels (Hardback) 9780471150398","description":"\u003cfont face=\"Georgia\"\u003e\r\n\u003cp\u003e\u003cfont size=\"6\"\u003eVoice Compression and Communications\u003c\/font\u003e\u003cbr\u003e\r\n\u003cfont size=\"5\"\u003ePrinciples and Applications for Fixed and Wireless Channels\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\r\n\u003cp\u003e\u003cfont size=\"4\"\u003eLajos Hanzo (Author), F. Clare A. Somerville (Author), Jason P. Woodward (Author)\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e9780471150398, Wiley\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eHardback, published 14 September 2001\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e672 pages\u003cbr\u003e26 x 18.5 x 3.8 cm, 1.361 kg\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\u003cp align=\"justify\"\u003e\u003cem\u003e\u003cfont size=\"3\"\u003e\"...focuses on voice compression issues in wireless communications.\" (\u003ci\u003eSciTech Book News\u003c\/i\u003e, Vol. 25, No. 4, December 2001)  \u003cp\u003e\"...a treatise on voice compression theory and practice that comprehensively treats this field?s evolution and current state of the art.\" (\u003ci\u003eChoice\u003c\/i\u003e, Vol. 39, No. 7, March 2002)\u003c\/p\u003e \u003cp\u003e\"...a definitive reference...no other single reference packs as much valuable and divers information about speech coding in a single volume...a truly invaluable reference...\" (\u003ci\u003eAnalog Dialogue\u003c\/i\u003e, Vol. 36, No. 6, November\/December 2002)\u003c\/p\u003e\u003c\/font\u003e\u003c\/em\u003e\u003c\/p\u003e\r\n\r\n\u003cp align=\"justify\"\u003e\u003cstrong\u003e\u003cfont size=\"3\"\u003eDie Sprache ist und bleibt unser natürlichstes und wichtigstes Kommunikationsmittel, selbst im Zeitalter des Internet und drahtloser Datenübermittlung. Aus diesem Buch lernen Sie die wichtigsten Prinzipien drahtloser Sprachübermittlung, darunter Kompression, Kanalcodierung und Übertragung, sowohl aus historischer als auch aus aktueller Sicht. Erläutert werden proprietäre und standardisierte Codes, darunter die Sprachcodes nahezu aller drahtlosen und drahtgebundenen Systeme. Auf diesen Grundlagen können Sie aufbauen!\u003c\/font\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e\u003cp\u003ePreface xxiii\u003c\/p\u003e \u003cp\u003eAcknowledgments xxix\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePart I Speech Signals and Waveform Coding 1\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 1 Speech Signals and Introduction to Speech Coding 3\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e1.1 Motivation of Speech Compression 3\u003c\/p\u003e \u003cp\u003e1.2 Basic Characterization of Speech Signals 4\u003c\/p\u003e \u003cp\u003e1.3 Classification of Speech Codecs 7\u003c\/p\u003e \u003cp\u003e1.4 Waveform Coding 11\u003c\/p\u003e \u003cp\u003e1.5 Chapter Summary 26\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 2 Predictive Coding 27\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e2.1 Forward Predictive Coding 27\u003c\/p\u003e \u003cp\u003e2.2 DPCM Codec Schematic 28\u003c\/p\u003e \u003cp\u003e2.3 Predictor Design 29\u003c\/p\u003e \u003cp\u003e2.4 Adaptive One-Word-Memory Quantization 36\u003c\/p\u003e \u003cp\u003e2.5 DPCM Performance 37\u003c\/p\u003e \u003cp\u003e2.6 Backward-Adaptive Prediction 39\u003c\/p\u003e \u003cp\u003e2.7 The 32kbps G.721 ADPCM Codec 43\u003c\/p\u003e \u003cp\u003e2.8 Subjective and Objective Speech Quality 49\u003c\/p\u003e \u003cp\u003e2.9 Variable-Rate G.726 and Embedded G.727 ADPCM 50\u003c\/p\u003e \u003cp\u003e2.10 Rate-Distortion in Predictive Coding 58\u003c\/p\u003e \u003cp\u003e2.11 Chapter Summary 62\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePart II Analysis by Synthesis Coding 63\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 3 Analysis-by-Synthesis Principles 65\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e3.1 Motivation 65\u003c\/p\u003e \u003cp\u003e3.2 Analysis-by-Synthesis Codec Structure 66\u003c\/p\u003e \u003cp\u003e3.3 The Short-Term Synthesis Filter 67\u003c\/p\u003e \u003cp\u003e3.4 Long-Term Prediction 70\u003c\/p\u003e \u003cp\u003e3.5 Excitation Models 78\u003c\/p\u003e \u003cp\u003e3.6 Adaptive Short-Term and Long-Term Post-Filtering 81\u003c\/p\u003e \u003cp\u003e3.7 Lattice-Based Linear Prediction 83\u003c\/p\u003e \u003cp\u003e3.8 Chapter Summary 89\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 4 Speech Spectral Quantization 90\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e4.1 Log-Area Ratios 90\u003c\/p\u003e \u003cp\u003e4.2 Line Spectral Frequencies 95\u003c\/p\u003e \u003cp\u003e4.3 Vector Quantization of Spectral Parameters 105\u003c\/p\u003e \u003cp\u003e4.4 Spectral Quantizers for Wideband Speech Coding 113\u003c\/p\u003e \u003cp\u003e4.5 Chapter Summary 126\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 5 Regular Pulse Excited Coding 127\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e5.1 Theoretical Background 127\u003c\/p\u003e \u003cp\u003e5.2 The 13 kbps RPE-LTP GSM Speech Encoder 133\u003c\/p\u003e \u003cp\u003e5.3 The 13 kbps RPE-LTP GSM Speech Decoder 137\u003c\/p\u003e \u003cp\u003e5.4 Bit Sensitivity of the 13 kbps GSM RPE-LTP Codec 140\u003c\/p\u003e \u003cp\u003e5.5 Application Example: A Toolbox-Based Speech Transceiver 142\u003c\/p\u003e \u003cp\u003e5.6 Chapter Summary 144\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 6 Forward-Adaptive Code Excited Linear Prediction 145\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e6.1 Background 145\u003c\/p\u003e \u003cp\u003e6.2 The Original CELP Approach 146\u003c\/p\u003e \u003cp\u003e6.3 Fixed Codebook Search 149\u003c\/p\u003e \u003cp\u003e6.4 CELP Excitation Models 151\u003c\/p\u003e \u003cp\u003e6.5 Optimization of the CELP Codec Parameters 160\u003c\/p\u003e \u003cp\u003e6.6 The Error-Sensitivity of CELP Codecs 175\u003c\/p\u003e \u003cp\u003e6.7 Application Example: A Dual-Mode 3.1 kBd Speech Transceiver 187\u003c\/p\u003e \u003cp\u003e6.8 Multi-Slot PRMA Transceiver 200\u003c\/p\u003e \u003cp\u003e6.9 Chapter Summary 206\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 7 Standard For ward-Adaptive CELP Codecs 207\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e7.1 Background 207\u003c\/p\u003e \u003cp\u003e7.2 The U.S. DoD FS-1016 4.8kbits\/s CELP Codec 207\u003c\/p\u003e \u003cp\u003e7.3 The IS-54 DAMPS kbps Pan American Speech Codec 213\u003c\/p\u003e \u003cp\u003e7.4 The 6.7 kbps Japanese Digital Cellular System's Speech Codec 216\u003c\/p\u003e \u003cp\u003e7.5 The Qualcomm Variable-Rate CELP Codec 218\u003c\/p\u003e \u003cp\u003e7.6 Japanese Half-Rate Speech Codec 225\u003c\/p\u003e \u003cp\u003e7.7 The Half-Rate GSM Codec 233\u003c\/p\u003e \u003cp\u003e7.8 The 8kbits\/s G.729 Codec 237\u003c\/p\u003e \u003cp\u003e7.9 The Reduced Complexity G.729 Annex A Codec 256\u003c\/p\u003e \u003cp\u003e7.10 The 12.2 kbps Enhanced Full-Rate GSM Speech Codec 259\u003c\/p\u003e \u003cp\u003e7.11 The Enhanced Full-Rate 7.4 kbps IS-136 Speech Codec 264\u003c\/p\u003e \u003cp\u003e7.12 The ITU G.723.1 Dual-Rate Codec 268\u003c\/p\u003e \u003cp\u003e7.13 Chapter Summary 277\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 8 Backward-Adaptive Code Excited Linear Prediction 279\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e8.1 Introduction 279\u003c\/p\u003e \u003cp\u003e8.2 Motivation and Background 279\u003c\/p\u003e \u003cp\u003e8.3 Backward-Adaptive G.728 Codec Schematic 282\u003c\/p\u003e \u003cp\u003e8.4 Backward-Adaptive G.728 Coding Algorithm 284\u003c\/p\u003e \u003cp\u003e8.5 Reduced-Rate G.728-Like Codec: Variable-Length Excitation Vector 298\u003c\/p\u003e \u003cp\u003e8.6 The Effects of Long-Term Prediction 300\u003c\/p\u003e \u003cp\u003e8.7 Closed-Loop Codebook Training 305\u003c\/p\u003e \u003cp\u003e8.8 Reduced-Rate G.728-Like Codec II: Constant-Length Excitation Vector 309\u003c\/p\u003e \u003cp\u003e8.9 Programmable-Rate 8-4 kbps Low-Delay CELP Codecs 310\u003c\/p\u003e \u003cp\u003e8.10 Backward-Adaptive Error Sensitivity Issues 327\u003c\/p\u003e \u003cp\u003e8.11 A Low-Delay Multimode Speech Transceiver 333\u003c\/p\u003e \u003cp\u003e8.12 Chapter Summary 338\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePart III Wideband Coding and Transmission 339\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 9 Wideband Speech Coding 341\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e9.1 Sub-band-ADPCM Wideband Coding at 64 kbps 341\u003c\/p\u003e \u003cp\u003e9.2 Wideband Transform Coding at 32 kbps 357\u003c\/p\u003e \u003cp\u003e9.3 Sub-Band-Split Wideband CELP Codecs 360\u003c\/p\u003e \u003cp\u003e9.4 Fullband Wideband ACELP Coding 363\u003c\/p\u003e \u003cp\u003e9.5 A Turbo-Coded Burst-by-Burst Adaptive Wideband Speech Transceiver 368\u003c\/p\u003e \u003cp\u003e9.6 Chapter Summary 384\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePart IV Very Low-Rate Coding and Transmission 385\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 10 Overview of Low-Rate Speech Coding 387\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e10.1 Low-Bitrate Speech Coding 387\u003c\/p\u003e \u003cp\u003e10.2 Linear Predictive Coding Model 400\u003c\/p\u003e \u003cp\u003e10.3 Speech Quality Measurements 403\u003c\/p\u003e \u003cp\u003e10.4 Speech Database 406\u003c\/p\u003e \u003cp\u003e10.5 Chapter Summary 409\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 11 Linear Predictive Vocoder 411\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e11.1 Overview of a Linear Predictive Vocoder 411\u003c\/p\u003e \u003cp\u003e11.2 Line Spectrum Frequencies Quantization 412\u003c\/p\u003e \u003cp\u003e11.3 Pitch Detection 417\u003c\/p\u003e \u003cp\u003e11.4 Unvoiced Frames 428\u003c\/p\u003e \u003cp\u003e11.5 Voiced Frames 429\u003c\/p\u003e \u003cp\u003e11.6 Adaptive Post-Filter 430\u003c\/p\u003e \u003cp\u003e11.7 Pulse Dispersion Filter 432\u003c\/p\u003e \u003cp\u003e11.8 Results for Linear Predictive Vocoder 437\u003c\/p\u003e \u003cp\u003e11.9 Chapter Summary 440\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 12 Wavelets and Pitch Detection 441\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e12.1 Conceptual Introduction to Wavelets 441\u003c\/p\u003e \u003cp\u003e12.2 Introduction to Wavelet Mathematics 444\u003c\/p\u003e \u003cp\u003e12.3 Pre-Processing the Wavelet Transform Signal 449\u003c\/p\u003e \u003cp\u003e12.4 Voiced-Unvoiced Decision 452\u003c\/p\u003e \u003cp\u003e12.5 Wavelet-Based Pitch Detector 453\u003c\/p\u003e \u003cp\u003e12.6 Summary and Conclusions 460\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 13 Zinc Function Excitation 461\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e13.1 Introduction 461\u003c\/p\u003e \u003cp\u003e13.2 Overview of Prototype Waveform Interpolation Zinc Function Excitation 462\u003c\/p\u003e \u003cp\u003e13.3 Zinc Function Modeling 466\u003c\/p\u003e \u003cp\u003e13.4 Pitch Detection 470\u003c\/p\u003e \u003cp\u003e13.5 Voiced Speech 473\u003c\/p\u003e \u003cp\u003e13.6 Excitation Interpolation Between Prototype Segments 477\u003c\/p\u003e \u003cp\u003e13.7 Unvoiced Speech 483\u003c\/p\u003e \u003cp\u003e13.8 Adaptive Post-Filter 483\u003c\/p\u003e \u003cp\u003e13.9 Results for Single Zinc Function Excitation 483\u003c\/p\u003e \u003cp\u003e13.10 Error Sensitivity of the 1.9kbps PWI-ZFE Coder 486\u003c\/p\u003e \u003cp\u003e13.11 Multiple Zinc Function Excitation 490\u003c\/p\u003e \u003cp\u003e13.12 A Sixth-Rate, 3.8kbps GSM-Like Speech Transceiver 496\u003c\/p\u003e \u003cp\u003e13.13 Chapter Summary 500\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 14 Mixed-Multiband Excitation 501\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e14.1 Introduction 501\u003c\/p\u003e \u003cp\u003e14.2 Overview of Mixed-Multiband Excitation 502\u003c\/p\u003e \u003cp\u003e14.3 Finite Impulse Response Filter 504\u003c\/p\u003e \u003cp\u003e14.4 Mixed-Multiband Excitation Encoder 507\u003c\/p\u003e \u003cp\u003e14.5 Mixed-Multiband Excitation Decoder 510\u003c\/p\u003e \u003cp\u003e14.6 Performance of the Mixed-Multiband Excitation Coder 513\u003c\/p\u003e \u003cp\u003e14.7 A Higher Rate 3.85 kbps Mixed-Multiband Excitation Scheme 520\u003c\/p\u003e \u003cp\u003e14.8 A 2.35kbit\/s Joint-Detection-Based CDMA Speech Transceiver 523\u003c\/p\u003e \u003cp\u003e14.9 Chapter Summary 530\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 15 Sinusoidal Transform Coding Below 4kbps 531\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e15.1 Introduction 531\u003c\/p\u003e \u003cp\u003e15.2 Sinusoidal Analysis of Speech Signals 532\u003c\/p\u003e \u003cp\u003e15.3 Sinusoidal Synthesis of Speech Signals 534\u003c\/p\u003e \u003cp\u003e15.4 Low-Bitrate Sinusoidal Coders 536\u003c\/p\u003e \u003cp\u003e15.5 Incorporating Prototype Waveform Interpolation 539\u003c\/p\u003e \u003cp\u003e15.6 Encoding the Sinusoidal Frequency Component 541\u003c\/p\u003e \u003cp\u003e15.7 Determining the Excitation Components 543\u003c\/p\u003e \u003cp\u003e15.8 Quantizing the Excitation Parameters 548\u003c\/p\u003e \u003cp\u003e15.9 Sinusoidal Transform Decoder 556\u003c\/p\u003e \u003cp\u003e15.10 Speech Coder Performance 558\u003c\/p\u003e \u003cp\u003e15.11 Chapter Summary 563\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 16 Conclusions on Low-Rate Coding 565\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e16.1 Overview 565\u003c\/p\u003e \u003cp\u003e16.2 Listening Tests 565\u003c\/p\u003e \u003cp\u003e16.3 Summary of Very Low-Rate Coding\u003c\/p\u003e \u003cp\u003e16.4 Further Research 568\u003c\/p\u003e \u003cp\u003e\u003cb\u003eChapter 17 Comparison of Speech Codecs and Transceivers 569\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e17.1 Background to Speech Quality Evaluation 569\u003c\/p\u003e \u003cp\u003e17.2 Objective Speech Quality Measures 570\u003c\/p\u003e \u003cp\u003e17.3 Subjective Measures 577\u003c\/p\u003e \u003cp\u003e17.4 Comparison of Subjective and Objective Measures 578\u003c\/p\u003e \u003cp\u003e17.5 Subjective Speech Quality of Various Codecs 580\u003c\/p\u003e \u003cp\u003e17.6 Error Sensitivity Comparison of Various Codecs 582\u003c\/p\u003e \u003cp\u003e17.7 Objective Speech Performance of Various Transceivers 583\u003c\/p\u003e \u003cp\u003eAppendix A Constructing the Quadratic Spline Wavelets 589\u003c\/p\u003e \u003cp\u003eAppendix B Zinc Function Excitation 593\u003c\/p\u003e \u003cp\u003eAppendix C Probability Density Function for Amplitudes 597\u003c\/p\u003e \u003cp\u003eBibliography 601\u003c\/p\u003e \u003cp\u003eIndex 623\u003c\/p\u003e \u003cp\u003eAuthor Index 631\u003c\/p\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eSubject Areas: Electronics \u0026amp; communications engineering [\u003ca title=\"See our other books on Electronics \u0026amp; communications engineering\" href=\"https:\/\/freshlyprintedbooks.co.uk\/search?q=%22Electronics%20\u0026amp;%20communications%20engineering%20%5BTJ%5D%22\"\u003eTJ\u003c\/a\u003e]\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\u003c\/font\u003e","brand":"Wiley-IEEE Press","offers":[{"title":"Brand 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