Speech Evaluation. Volume I

Abstract

Two broad categories of work are described: algorithmic studies and hardware design. Several algorithms for digitizing and reducing the data rate of speech signals are described. These algorithms include an adaptive residual coder (ARC) designed to produce data at 16 and 9.6 kbps, an adaptive predictive coder (APC) at 8 kbps, a voice-excited linear predictor (VELP) at 8 kbps, and a straight linear predictive coded (LPC) vocoder at 2.4, 3.6, and 4.8 kbps. In addition, some work on pitch or excitation extraction is described. All these studies are evaluated on a realtime facility which is described. In the hardware design area, the digital voice terminal is described in detail, as well as some follow-on next-generation LSI studies. Volume II will contain a digital voice terminal (DVT) manual, program listings, and a cross assembler.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1975
Accession Number
ADA021239

Entities

People

  • Bernard Gold

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Coding
  • Computer Programming
  • Computers
  • Contracts
  • Data Compression
  • Data Rate
  • Detectors
  • Fabrication
  • Instruction Set Architecture
  • Integrated Circuits
  • Large Scale Integration
  • Reliability
  • Simulations
  • Speech Compression
  • Test And Evaluation
  • Very Large Scale Integration

Readers

  • Computer Science.
  • Software Engineering
  • Speech Processing/Speech Recognition.