A Trellis-searched APC (adaptive Predictive Coding) Speech Coder PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
In this paper we formulate a speech coding system that incorporates trellis coded vector quantization (TCVQ) and adaptive predictive coding (APC). A method for optimizing'' the TCVQ codebooks is presented and experimental results concerning survivor path mergings are reported. Simulation results are given for encoding rates of 16 and 9.6 kbps for a variety of coder parameters. The quality of the encoded speech is deemed excellent at an encoding rate of 16 kbps and very good at 9.6 kbps. 13 refs., 2 figs., 4 tabs.
Author: Publisher: ISBN: Category : Languages : en Pages : 11
Book Description
In this paper we formulate a speech coding system that incorporates trellis coded vector quantization (TCVQ) and adaptive predictive coding (APC). A method for optimizing'' the TCVQ codebooks is presented and experimental results concerning survivor path mergings are reported. Simulation results are given for encoding rates of 16 and 9.6 kbps for a variety of coder parameters. The quality of the encoded speech is deemed excellent at an encoding rate of 16 kbps and very good at 9.6 kbps. 13 refs., 2 figs., 4 tabs.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: J. J. Wolf Publisher: ISBN: Category : Languages : en Pages : 424
Book Description
This report describes the design and development of a real-time robust APC speech coder that transmits high-quality speech over a 16 kb/s channel with bit-error rates of up to 1%. This volume (Vol. II) describes the implementation of the optimized adaptive predictive coding algorithm as a full-duplex real-time speech coder on the CSP Inc. MAP-300 array processing computer. The report documents in detail the MAP-300 program, and it includes complete listings of the real-time coder program. (Author).
Author: Thomas P. Barnwell Publisher: John Wiley & Sons ISBN: Category : Computers Languages : en Pages : 208
Book Description
You'll find complete coverage of the state-of-the-field, including pulse code modulators... adaptive pulse code modulators... adaptive differential pulse code modulation... adaptive predictive coders... linear predictive coders... code excited linear predictive coders... multipulse excited linear predictive coders... subband coders... transform coders, and much more.
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Author: Kevin Thomas Malone
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Author: J. J. Wolf
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Author: Thomas P. Barnwell
Author: F. W. Zaki