Advances in Speech Coding

Front Matter....Pages i-ix
Introduction....Pages 1-2
Front Matter....Pages 3-3
Backward Adaptive Prediction Algorithms in Multi-Tree Speech Coders....Pages 5-12
Backward Adaptive Configurations for Low-Delay Vector Excitation Coding....Pages 13-23
A Robust Low-Delay CELP Speech Coder at 16 Kb/s....Pages 25-35
An Efficient Variable-Bit-Rate Low-Delay CELP (VBR-LD-CELP) Coder....Pages 37-46
A Trellis-Searched 16 Kbit/Sec Speech Coder with Low-Delay....Pages 47-56
Hybrid Backward Adaptive Pitch Prediction for Low-Delay Vector Excitation Coding....Pages 57-66
Front Matter....Pages 67-67
Vector Sum Excited Linear Prediction (VSELP)....Pages 69-79
An Error Protected Transform Coder for Cellular Mobile Radio....Pages 81-86
A Multipulse Speech Codec for Digital Cellular Mobile Use....Pages 87-96
Transmitting Digital Speech in a Portable Radio Environment....Pages 97-107
A Study on Speech and Channel Coding for Digital Cellular....Pages 109-118
Front Matter....Pages 119-119
The Dod 4.8 Kbps Standard (Proposed Federal Standard 1016)....Pages 121-133
Analysis-by-Synthesis Linear Predictive Speech Coding at 4.8 kbit/s and Below....Pages 135-143
Binary Pulse Excitation: A Novel Approach to Low Complexity CELP Coding....Pages 145-156
Speech Coding with Dynamic Bit Allocation (Multimode Coding)....Pages 157-166
7 KBPS — 7 MIPS — High Quality ACELP for Cellular Radio....Pages 167-177
A 6 KBPS Regular Pulse CELP Coder for Mobile Radio Communications....Pages 179-188
Front Matter....Pages 189-189
Beyond Multipulse and CELP Towards High Quality Speech at 4 Kb/s....Pages 191-201
Sine-Wave Amplitude Coding at Low Data Rates....Pages 203-213
Front Matter....Pages 189-189
The Multi-Band Excitation Speech Coder....Pages 215-223
Phonetic Segmentation for Low Rate Speech Coding....Pages 225-234
Vector Excitation Homomorphic Vocoder....Pages 235-244
A 400-bps Speech Coding Algorithm for Real-Time Implementation....Pages 245-254
Front Matter....Pages 255-255
Source-Dependent Channel Coding and its Application to CELP....Pages 257-266
Vector Trellis Quantization for Noisy Channels....Pages 267-276
Application of Stochastic Coding Schemes in Satellite Communication....Pages 277-286
A Real Time Implementation of a 4800 bps Self Excited Vocoder....Pages 287-297
A Real-Time Full Duplex 16/8 kbps CVSELP Coder with Integral Echo Canceller Implemented on a Single DSP56001....Pages 299-308
Front Matter....Pages 309-309
Improved Excitation Sequence Quantization in Regular Pulse Excitation Speech Coding....Pages 311-320
On Improving the Performance of Pitch Predictors in Speech Coding Systems....Pages 321-327
Efficient Encoding of the Long-Term Predictor in Vector Excitation Coders....Pages 329-338
Constrained-Stochastic Excitation Coding of Speech at 4.8 kb/s....Pages 339-348
Speech Coding Using Least-Squares Estimation....Pages 349-358
Qualitative Analysis and Enhancement of Sine Transform Coding....Pages 359-366
An ADM Speech Coding with Time Domain Harmonic Scaling....Pages 367-373
Back Matter....Pages 375-378