Speech Evaluation.
Abstract
This volume reports this year's work on the DCA speech evaluation contract. Three general areas of work are reported: (1) Work on narrowband terminal 'robustness'; (2) Work on wideband-narrowband tandeming; and (3) Hardware speech-terminal efforts. The robustness issues are defined early in this report; then, work on telephone-line simulation, robust pitch extraction, and operation of LPC vocoders in acoustically noisy environments is reported. This report also discusses some approaches and progress made in the improvement of wideband devices, and the interoperability of wideband and narrowband terminals. The design and development of a microprocessor-based LPC vocoder, as well as some work on the development of charge-transfer-device-based channel-vocoder equipment, also are described.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1976
- Accession Number
- ADA041246
Entities
People
- Bernard Gold
Organizations
- Massachusetts Institute of Technology