A Note on Loud and Lombard Speech.

Abstract

The purpose of this report is to compare speech which is loud as a consequence of noise exposure (Lombard speech) with speech which is loud deliberately. One male speaker was recorded in six speaking conditions: (1) ambient noise, (2) high noise, and (3) intentionally loud speech, all three recorded with a boom microphone and while wearing an oxygen mask. Lombard speech and deliberately loud speech shared more similarities than differences and appear to result from the same speech production mechanisms. Both were produced with more effort so that energy and fundamental frequency increased. Both were produced: (1) with a wider mouth opening so that formants, (2) particularly F1, and (3) shifted. The oxygen mask minimized changes.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1990
Accession Number
ADA346202

Entities

People

  • Thomas J. Moore
  • Z. S. Bond

Organizations

  • Ohio University

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Air Force
  • Air Force Facilities
  • Ambient Noise
  • Biomedical Research
  • Data Analysis
  • Environment
  • Flight Helmets
  • Frequency
  • Linguistics
  • Measurement
  • Microphones
  • Noise
  • Oxygen Masks
  • Standards
  • Syllables
  • Voice Communications

Readers

  • Acoustics.
  • Speech Processing/Speech Recognition.
  • Systems Analysis and Design