A Study of the Capability of Grammatical Analysis to Improve Accuracy in Continuous Speech Recognition for Command and Control.

Abstract

The speech samples, or utterances, are digitized on premises by off-line computer I/O station and recorded on 7-track magnetic tape in computer acceptable format. Following the conversion of the data to conventional IBM form, a spectrum analysis is performed. A short-time spectrum is generated for approximately each 10 ms of data (the increment is 96 data points). A Hamming window function is used to reduce the sidelobes (or leakage); the window is approximately 30 ms long (270 data points). The primary emphasis of the effort to date has been on the grammatical analysis portion of the work. The effort in speech signal analysis has been directed at providing data for demonstration of the grammatical analysis system, rather than optimization of the speech signal analysis programs. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1972
Accession Number
AD0746333

Entities

People

  • Wilbur D. Larkin
  • William B. Newcomb

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Automated Speech Recognition
  • Command And Control
  • Computers
  • Conversion
  • Demonstrations
  • Identification
  • Magnetic Tape
  • Optimization
  • Recognition
  • Sidelobes
  • Spectra
  • Spectrum Analysis
  • Tapes

Fields of Study

  • Engineering

Readers

  • Speech Processing/Speech Recognition.
  • Systems Analysis and Design
  • Technical Research and Report Writing.

Technology Areas

  • AI & ML
  • Fully Networked C3
  • Fully Networked C3 - Command and Control