Accession Number : ADA313690

Title :   Pitch and Time-Scale Modification of Speech: A Review of the Literature.

Descriptive Note : Interim rept. May 94-May 95,

Corporate Author : ARMSTRONG LAB WRIGHT-PATTERSON AFB OH CREW SYSTEMS DIRECTORATE

Personal Author(s) : Slyh, Raymond E.

PDF Url : ADA313690

Report Date : AUG 1995

Pagination or Media Count : 39

Abstract : This report summarized the literature in the areas of pitch and time-scale modification of speech. Based on the discussions in the literature, the report recommends the following four techniques for further evaluation: (1) the pitch-synchronous overlap-add technique; (2) the sinusoidal analysis/synthesis system of Quatieri and McAulay; (3) the harmonic plus noise model of Laroche, Stylianou, and Moulines; and (4) the time-domain harmonic scaling technique. All four techniques are capable of modifying both the pitch and the time scale of speech signals.

Descriptors :   *SIGNAL PROCESSING, *SPEECH ANALYSIS, *SOUND PITCH, MATHEMATICAL MODELS, TIME DEPENDENCE, MODIFICATION, SIGNAL TO NOISE RATIO, INPUT OUTPUT PROCESSING, MATHEMATICAL FILTERS, INTERPOLATION, LEAST SQUARES METHOD, ACOUSTIC SIGNALS, SPEECH TRANSMISSION, FAST FOURIER TRANSFORMS, SYSTEMS ANALYSIS, ACOUSTIC FILTERS, SOUND WAVES, TIME DOMAIN, ACOUSTIC DATA, VOICE COMMUNICATIONS, VOCODERS, HARMONIC ANALYSIS.

Subject Categories : Acoustics
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE