Variable rate speech synthesizer

Details Variable rate speech synthesizer Variable rate speech synthesizer

G - Physics

10

L

354/53

G10L 1/10 (1980.01)

Patent

CA 1181859

11 VARIABLE RATE SPEECH SYNTHESIZER ABSTRACT OF THE DISCLOSURE In a speech synthesizer, a method and apparatus for varying the intonation of a word or a phrase relies on the generation of pitch frequencies independent of the formant frequencies of synthesized speech. Pitch frequency is controlled and varied in successive repetitions of a phrase by reference to an external timing reference, such as a stored tables of pitch frequencies as functions of time. At each repetition of a phrase, a different repetition rate produces successive repetitions of the same phrase with desired variations in intonation. The invention finds application in both time domain speech synthesis and frequency domain speech synthesis.

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