用软件实现了特征提取单元、语音训练单元和语音识别单元，并利用嵌入式数据库技术对训练时提取的数据进行有效地管理。
We usr software to realize the feature extraction unit, training unit and recognition unit . Database technology is used for managing data.
汉语语音识别的基本单元一般为音素、音节以及声韵母。
The base unit in mandarin speech recognition is phoneme, semi syllable or syllable.
实验表明：基于语音学分类的三音子单元对识别性能有明显的改善，系统的首选误识率相对基线系统降低了28%。
Experimental results show that phonetic classification based on the triphone can greatly improve system performance. The proposed method reduces the error rate by 28% compared with a baseline system.
训练单元是语音识别系统中十分重要的一环，语音识别系统的训练效果的优劣直接关系到系统的整体性能。
The training unit is a very important part in speech recognition and it determines the entire properties of the system.
训练单元是语音识别系统中十分重要的一环，语音识别系统的训练效果的优劣直接关系到系统的整体性能。
The training unit is a very important part in speech recognition and it determines the entire properties of the system.
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