Accession Number : ADA308693

Title :   Vulnerability of Female Produced Speech in Operational Environments.

Descriptive Note : Annual rept. 5 Dec 94-1 Aug 95,

Corporate Author : ARMSTRONG LAB WRIGHT-PATTERSON AFB OH CREW SYSTEMS DIRECTORATE

Personal Author(s) : Nixon, Charles W. ; Morris, Linda J. ; McCavitt, Angela R. ; McDaniel, Mark P. ; Anderson, Timothy R.

PDF Url : ADA308693

Report Date : 31 AUG 1995

Pagination or Media Count : 48

Abstract : The role of women in combat environments has expanded dramatically. The accommodation of females in these previously male dominated environments is vital to fully successful mission accomplishment. Effective voice communications are critical to successful strategic and tactical operations. Current aircraft communications systems and components were optimized for male voice characteristics. Based on laboratory experience and knowledge of the basic characteristics of male and female acoustic speech, many questions exist concerning possible differential effects of operational variables on female speech. This study investigates the impact of the following factors on the perception of female speech: (a) the different spectra of operational noise environments, (b) the response characteristics of noise-cancelling microphones, (c) digital encoding and decoding, and (d) accuracy of automatic speech recognition systems.

Descriptors :   *SPEECH RECOGNITION, *VOICE COMMUNICATIONS, SIGNAL PROCESSING, DIGITAL SYSTEMS, SYSTEMS ENGINEERING, COCKPITS, VULNERABILITY, SIGNAL TO NOISE RATIO, ACCURACY, HELICOPTERS, JET FIGHTERS, ACOUSTIC SIGNALS, SPEECH ANALYSIS, SPEECH TRANSMISSION, SYSTEMS ANALYSIS, NOISE REDUCTION, STRATEGIC WARFARE, TRANSPORT AIRCRAFT, TACTICAL WARFARE, MICROPHONES, ACOUSTIC DATA, BACKGROUND NOISE, FEMALES, VOCODERS, AUDIO FREQUENCY, AIRCRAFT NOISE, PSYCHOACOUSTICS, AUDITORY PERCEPTION.

Subject Categories : Voice Communications
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE