Accession Number:

ADA083079

Title:

Design and Real-Time Implementation of a Baseband LPC Coder for Speech Transmission over 9600 BPS Noisy Channels. Volume I. Description.

Descriptive Note:

Final rept. Nov 78-Feb 80,

Corporate Author:

BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA

Report Date:

1980-02-01

Pagination or Media Count:

255.0

Abstract:

This report describes the design and development of a real-time baseband LPC speech coder that transmits high-quality speech over a 9600 bps synchronous channel with bit-error rates of up to 1. Presented are the results of our investigation of a number of aspects of the baseband LPC coder with the goal of maximizing the quality of the transmitted speech. Important among these aspects are baseband width, baseband coding, high-frequency regeneration, and error-protection of important transmission parameters. The report also includes the system design, detailed documentation, and program listings of the MAP-300 real-time implementation of the optimized speech coder. Volume I contains the text of the report.

Subject Categories:

  • Cybernetics
  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE