Accession Number : ADB054791

Title :   An Assessment of Speech Intelligibility Performance of the Marconi 'Growler' Vocoder.

Descriptive Note : Rept. for Nov 79-Apr 80,

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY

Personal Author(s) : Smith, Caldwell P.

Report Date : JUN 1980

Pagination or Media Count : 36

Abstract : The Marconi 'Growler' narrowband vocoder was tested for speech intelligibility performance under conditions of bit errors (random, and JTIDS frame errors), noisy acoustic environments, and 'ideal' conditions (quiet environment, zero bit errors, high fidelity microphone). Intelligibility performance was found to be comparable to that of other current state-of-the-art narrowband voice processors that have been tested. (Author)

Descriptors :   *VOCODERS, *INTELLIGIBILITY, SPEECH RECOGNITION, VOICE COMMUNICATIONS, SPEECH TRANSMISSION, ANALOG TO DIGITAL CONVERTERS, SIGNAL PROCESSING, NARROWBAND, SECURE COMMUNICATIONS, ERRORS, NOISE(SOUND), COMPARISON, STATE OF THE ART.

Subject Categories : Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE