A Graphic Method for Predicting Audibility of Noise Sources

Abstract

This report provides the technical rationale for revision of a chart developed by Fidell, Pearsons, and Bennett (1972). This chart expresses the relationships between signal-to-noise ratio and frequency that govern detectability of acoustic signals by human observers. The chart permits a user: (1) to predict the frequency region of a spectrum that is most detectable in any given ambient noise background; (2) to quantify the degree of detectability of the signal in question; and (3) to estimate reduction in signal-to-noise ratio necessary to render the signal undetectable.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1982
Accession Number
ADA123736

Entities

People

  • Richard Horonjeff
  • Sanford Fidell

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Signals
  • Acoustics
  • Air Force
  • Ambient Noise
  • Bandwidth
  • Broadband
  • Detection
  • Detectors
  • Ear
  • False Alarms
  • Frequency
  • Frequency Bands
  • Measuring Instruments
  • Repetition Rate
  • Sound Pressure
  • Warning Systems

Readers

  • Acoustics.
  • Regression Analysis.