Method and Apparatus for Segmenting a Speech Waveform.

Abstract

A system that synchronously segments a speech waveform using pitch period and a center of the pitch waveform. The pitch waveform center is determined by finding a local minimum of a centroid histogram waveform of the low-pass filtered speech waveform for one pitch period. The speech waveform can then be represented by one or more of such pitch waveforms or segments during speech compression, reconstruction or synthesis. The pitch waveform can be modified by frequency enhancement/filtering, waveform stretching/shrinking in speech synthesis or speech disguise. The utterance rate can also be controlled to speed up or slow down the speech.

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Document Details

Document Type
Technical Report
Publication Date
Nov 07, 1995
Accession Number
ADD017906

Entities

People

  • George S. Kang
  • Lawrence J. Fransen

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Center Of Gravity
  • Compression
  • Computer Programs
  • Computers
  • Discrete Fourier Transforms
  • Filters
  • Frequency
  • Generators
  • Low Pass Filters
  • Patent Applications
  • Resonant Frequency
  • Sampling
  • Shift Registers
  • Speech Compression
  • Step Functions
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Speech Processing/Speech Recognition.

Technology Areas

  • AI & ML