Accession Number:

AD0777191

Title:

Research on Speech Communication and Automatic Speech Recognition.

Descriptive Note:

Final rept.,

Corporate Author:

SPEECH COMMUNICATIONS RESEARCH LAB INC SANTA BARBARA CALIF

Personal Author(s):

Report Date:

1974-02-15

Pagination or Media Count:

24.0

Abstract:

The report summarizes two major areas of research. The first area is concerned with the theory of phonology, which has included work on the units of phonology, a theory of symbolization, the completion of a large computer-based quasi-phonemicorthographic dictionary of American English, some work on dialect description, and the formalization of a functional phonemic theory. The second area is concerned with logical procedures for the interpretation of acoustic phonetic data. The study includes a massive investigation of formant frequency transitions in CVC syllables as well as an anlysis of the segment durations in the same syllables. This work was extended to a study of the use of formant frequency information in automatic speech recognition. Segmentation using formant dynamics and the sources of formant frequency variability were investigated. The relations between the applied problems at different levels of automatic speech recognition and various basic problems in speech and language were outlined in detail. Modified author abstract

Subject Categories:

  • Linguistics
  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE