TECHNIQUE INVESTIGATION FOR AIRCRAFT VOICE RECORDING

Abstract

Tests were conducted at the National Aviation Facilities Experimental Center utilizing two aircraft, a C-131 and a Grumman Gulfstream, to investigate several cockpit voice recording techniques for the design and development of a transport aircraft voice recorder system. Binaural recording, noise cancellation inserted prior to recording, and filter techniques such as combined T-notch and band-pass, voice intelligibility equipment singularly, voice intelligibility equipment combined with the T-notch filter, and voice intelligibility equipment combined with the band-pass filter were investigated. The voice intelligibility equipment, employed in a single filter, demonstrated the most satisfactory filtering technique for recording cockpit voice. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1961
Accession Number
AD0270201

Entities

People

  • Francis W. Jefferson

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Cancellation
  • Filters
  • Filtration
  • Intelligibility
  • Notch Filters
  • Recording Systems
  • Transport Aircraft
  • Transport Ships
  • Vehicle Equipment

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Aviation Safety and Air Traffic Management
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.