A Comparison of Two Computer Implemented Psychophysical Procedures Applied to Real-Ear Attenuation Testing (ANSI S12.6-1984)

Abstract

The application of computer technology to acoustical instrumentation has significantly increased the capability and flexibility of modern acoustical laboratories. The need to replace old recording attenuators used in real-ear sound attenuation testing with state of the art instrumentation prompted the combination of a CMOS multiplying D/A converter chip (which can accurately and reliably attenuate an analog signal) and a table-top computer to control the D/A chip. The computer was also used to record the measurement of auditory threshold, perform statistical analysis, and permanently store data. The flexibility of computer technology allowed the choice of psychophysical procedure. Consideration was given to two such procedures, tracking and method of adjustment. This study was undertaken to determine if one of these procedures would produce faster, more accurate results.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1988
Accession Number
ADA200431

Entities

People

  • Ben T. Mozo
  • William R. Nelson

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Analog Signals
  • Army Aviation
  • Attenuation
  • Attenuators
  • Biomedical Research
  • Computers
  • Data Science
  • Frequency
  • Health Services
  • Information Science
  • Instrumentation
  • Measurement
  • Military Research
  • New York
  • Statistical Analysis

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Computational Modeling and Simulation
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.