| Summary: | 碩士 === 國立交通大學 === 電信工程系所 === 96 === The spontaneous speech is most close to the speech in natural cases of people and can relatively apply to daily life actually, so become more and more important gradually. The first sets up acoustics model with mandarin sub-syllable HMM. From the error analysis, the recognizing device doesn’t often distinguish between Uncertain and 411 syllable, and between Particle and 411 syllable. Do not put Uncertain model into the recognizing device, can improve the recognizing rate. Particle is in acoustics, very similar 411 syllable, and the language purpose of Particle is only different from the language purpose of 411 syllable and this is difficult to distinguish between their acoustics models. The second sets up acoustics model with mandarin sub-syllable HMM, and then can improve 3.3% of recognizing rate, and uses skip state to improve Deletion error, and then that does not improve so well as expectancy. From Deletion error analysis, we know Syllable Contraction causes the most of Deletion error.
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