Paper
1 January 1987 Digital Coding Of Speech Algorithms And Architectures
A. Z. Baraniecki
Author Affiliations +
Proceedings Volume 0858, Signal Acquisition and Processing; (1987) https://doi.org/10.1117/12.968267
Event: IECON, Cambridge, 1987, Cambridge, MA, United States
Abstract
This paper describes several algorithms and architectures of digital speech coders. Bit rate compression algorithms based on speech prediction are analyzed for applications such as mobile radio communications, secure voice transmission, voice mail, and voice storage and response systems. The architectures for sample-by-sample or block-by-block processing of speech are discussed. The details of architectures are discussed in a conceptual framework that simplifies the comparison of several implementations of vocoders and the identification of common blocks. Examples of implementation of predictive speech coding algorithms on the TMS320 digital signal processor are presented in this paper. Various predictor structures including new, non-classical, reduced complexity adaptive predictor are presented. Current research trends with an emphasis on low-bit-rate, high-quality speech coding are described.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Z. Baraniecki "Digital Coding Of Speech Algorithms And Architectures", Proc. SPIE 0858, Signal Acquisition and Processing, (1 January 1987); https://doi.org/10.1117/12.968267
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KEYWORDS
Digital signal processing

Signal processing

Algorithm development

Quantization

Computer programming

Filtering (signal processing)

Telecommunications

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