Accession Number : ADA136869

Title :   The Importance of Phase in Word Recognition.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Pfeiffer,J T

PDF Url : ADA136869

Report Date : Sep 1983

Pagination or Media Count : 109

Abstract : The use of phase-only representations of speech for isolated word recognition is explored. Until recently the ear was thought to be short-term phase insensitive. However, short-term phase-only reconstructed speech has been shown to retain much of the intelligibility of the original signal. Using cepstral and analytic signal processing techniques, a system for isolated word recognition is developed. The results of tests for both the speaker dependent and speaker-independent case indicate that phase may be an important feature to consider in the development of word recognition systems. (Author)

Descriptors :   *Word recognition, *Signal processing, *Phase, *Speech recognition, *Cepstrum technique, Intelligibility, Computerized simulation, Ear, Transformations(Mathematics), Bionics, Auditory perception, Speech, Algorithms, Computer programs, Decision theory, Sound analyzers, Theses

Subject Categories : Computer Programming and Software
      Cybernetics
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE