METHOD FOR ANALYSIS AND SYNTHESIS OF SPEECH Russian patent published in 2007 - IPC G10L19/14 

FIELD: analysis and synthesis of speech information outputted from computer, possible use in synthesizer-informers in mass transit means, communications, measuring and technological complexes and during foreign language studies.

SUBSTANCE: method includes: analog-digital conversion of speech signal; segmentation of transformed signal onto elementary speech fragments; determining of vocalization of each fragment; determining, for each vocalized elementary speech segment, of main tone frequency and spectrum parameters; analysis and changing of spectrum parameters; and synthesis of speech sequence. Technical result is achieved because before synthesis, in vocalized segments periods of main tone of each such segment are adapted to zero starting phase by means of transferring digitization start moment in each period of main tone beyond the point of intersection of contouring line with zero amplitude, distortions appearing at joining lines of main tone periods are smoothed out and, during transformation of additional count in the end of modified period of main tone, re-digitization of such period is performed while preserving its original length.

EFFECT: improved quality of produced modulated signal, allowing more trustworthy reproduction of sounds during synthesis of speech signal.

2 cl, 8 dwg