Characterizing and Classifying Acoustical Ambient Sound Profiles

Abstract

Acoustical modeling focuses on the sound pressures generated by the operation of some system of interest, the propagation of the sound through some medium (the atmosphere) and the sound pressure levels picked up by the receiver (listening device or a human). Ambient noise, or the background noise occurring naturally in an environment, affects the ability of the receiver to identify the sound from the system of interest. This work examines nominal logistic modeling of human performance data, methods to remove the time-dependency aspect of ambient sound profiles, and develops a method with which to classify sample ambient noise pro les against one of nine standard ambient noise profiles. The application of these methods to a notional scenario is provided.

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Document Details

Document Type
Technical Report
Publication Date
Mar 26, 2015
Accession Number
ADA618133

Entities

People

  • Paul T. Gaski

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Air Force
  • Aircraft Noise
  • Aircrafts
  • Airframes
  • Computer Programs
  • Doppler Effect
  • Fixed Wing Aircraft
  • Glass Fibers
  • Jet Aircraft
  • Military Aircraft
  • Military Operations
  • Rotary Wing Aircraft
  • Three Dimensional
  • Turbojet Engines
  • United States Government

Readers

  • Speech Processing/Speech Recognition.
  • Thermal Physics or Thermal Science.
  • Wave Propagation and Nonlinear Chaotic Dynamics.