Accession Number : AD0717789

Title :   Psychoacoustic Assessment of Speech Communication Systems. The Diagnostic Discrimination Test,

Corporate Author : NORTH CAROLINA STATE UNIV RALEIGH

Personal Author(s) : Grether,Craig Blaine

Report Date : 22 SEP 1970

Pagination or Media Count : 118

Abstract : The report traces the rationale, development and experimental evaluation of the Diagnostic Discrimination Test (DDT). The DDT is a three-choice test of consonant discriminability. Specifically, it is a test of the discriminability of the perceptual/acoustic dimensions of consonant phonemes within specific vowel contexts. The DDT was created and developed in an attempt to provide a diagnostic assessment of communication system deficiencies to aid in system design and development. Results are presented in terms of the sensitivity of the DDT to various degrees of speech impoverishment, and of the reliability of the DDT upon successive experimental replications. (Author)

Descriptors :   (*VOICE COMMUNICATIONS, *PSYCHOACOUSTICS), TEST CONSTRUCTION(PSYCHOLOGY), PHONETICS, AUDITORY ACUITY, SYSTEMS ENGINEERING

Subject Categories : Psychology
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE