| 摘要 |
<p>11 VARIABLE RATE SPEECH SYNTHESIZER 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.</p> |
