Accession Number : AD0678815

Title :   STATISTICAL TREATMENT OF PRIMARY CHARACTERISTICS OF SPEECH SIGNALS WITH THE USE OF AN ELECTRONIC COMPUTER,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Petrov,O. A.

Report Date : 01 MAR 1968

Pagination or Media Count : 17

Abstract : The article reports on the qualitative estimate of a newly proposed set of primary speech signal characteristics by the statistical processing on an electronic computer of 15 letter sounds dictated by 40 persons. The study covers: (1) the estimate of the feasibility of a simple establishment of invariant functionals characterizing a group of sounds or separate sounds; (2) the estimate of the feasibility of primary functionals description by averaging the characteristics over the various speakers involved; (3) the study of the effectiveness of a linear normalization of letter sound production duration; and (4) the feasibility of primary functional description by means of normal distribution low parameters. An analysis of the statistical results shows that it is possible to extract by simple devices a sufficient number of invariant characteristics needed for a reliable recognition of a set of letter sounds. However, the problem of the establishment of characteristics by means of normal distribution parameters still remains unclear. It is possible that this approach may work in conjunction with the sound production duration normalization. (Author)

Descriptors :   (*SPEECH RECOGNITION, FEASIBILITY STUDIES), STATISTICAL ANALYSIS, PATTERN RECOGNITION, DIGITAL COMPUTERS, DISTRIBUTION FUNCTIONS, INFORMATION THEORY, USSR

Subject Categories : Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE