Accession Number : AD0696123

Title :   A METHOD FOR ANALYZING PHONEMIC ERRORS IN UNDERWATER SPEECH INTELLIGIBILITY TESTING.

Descriptive Note : Progress rept.,

Corporate Author : FLORIDA UNIV GAINESVILLE COMMUNICATION SCIENCES LAB

Personal Author(s) : Hollien,Harry ; Brandt,John F. ; Murry,Thomas

Report Date : 01 SEP 1969

Pagination or Media Count : 15

Abstract : A method for analyzing listeners' phonemic confusions of monosyllabic words was developed in order to determine the type as well as the number of consonant errors made in divers speech. This method, which deals exclusively with consonants, allows for the listeners' responses to be written in phonetics or traditional orthography. Therefore, it can be used with experienced or naive listeners which, in large scale intelligibility testing, is desired or necessary. From the listeners' responses, the errors are grouped into simple consonant-for-consonant substitutions, substitutions involving consonant clusters, and omissions, and additions. The results of the analyses are presented in terms of the percent correct for each phoneme relative to the total possible number of correct phonemes at a certain condition. In this way, the relative intelligibility of each phoneme may be obtained and compared with other phonemes in the same test or with the same phoneme in various testing situations. Preliminary data indicate that the reliability of transforming the orthographic responses to phonemes ranges from 86.7 to 93 percent. Some results of the initial application of this procedure to the phonemic confusions of divers' speech in Helium-oxygen environments indicate that majority of confusion occurs among sounds produced with the same voicing component within the same manner and place of articulation categories. With regard to the errors of place of articulation, the confusions were approximately random. (Author)

Descriptors :   (*UNDERWATER COMMUNICATION SYSTEMS, *SPEECH RECOGNITION), SPEECH, INTELLIGIBILITY, VOICE COMMUNICATIONS, SCUBA DIVERS, HELIUM

Subject Categories : Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE