Vocabulary Synthesis Based on Line Spectrum Pairs

Abstract

This report describes the initial investigation of a new synthetic speech system based on a line spectrum pair (LSP) representation of the speech spectral envelope. The system contains a library of stored LSP speech segments extracted from natural speech. These segments are modified as necessary by a small set of context-sensitive rules and then concatenated to generate high- quality, natural-sounding speech. Tests of a preliminary system produced Modified Rhyme Test and Diagnostic Rhyme Test scores of 87.3 and 79.7, respectively. This LSP vocabulary synthesizer is currently limited to single syllable utterances, but future research will expand its capabilities to allow implementation of a full text-to-speech system.

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Document Details

Document Type
Technical Report
Publication Date
Jan 12, 1989
Accession Number
ADA203998

Entities

People

  • Stephanie S. Everett

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Air
  • Amplitude
  • Bandwidth
  • Consonants
  • Contrast
  • Errors
  • Excitation
  • Filters
  • Frequency
  • Frequency Domain
  • Human-Computer Interfaces
  • Larynx
  • Line Spectra
  • Military Research
  • Resonant Frequency
  • Spectra
  • Standards

Readers

  • Computer Science.
  • Speech Processing/Speech Recognition.