SYSTEM AND METHOD FOR DECISION OF PITCH OUTLINE

摘要

PROBLEM TO BE SOLVED: To automatically calculate a local pitch outline from an input text by describing the pitch outline as the sum of a word or phrase curve and an accent curve. SOLUTION: A critical interval processor 31 divides respective accent groups for an input text at plural critical intervals. An anchor time processor 32 calculates a series of anchor times. A curve generating processor 33 determines the anchor value of a corresponding set by using a retrieval table and plots those anchor values as (y)-axis values corresponding to respective anchor time values arrayed along an (x) axis. The curve which is thus generated is multiplied by numeric constants representing various linguistic factors through the curve generating processor 33. The curve of the thus obtained product representing an accent curve for speech segments which are being analyzed is added to a word or phrase curve which is previously calculated to generate a pitch outline for the speech segment.