维吾尔语元音的声频特性分析和识别

Analysis of Acoustic Frequency Feature for Uighur Vowels and Their Identification

维吾尔语属阿尔泰语系突厥语族,由于其构词法的特点,八个元音的声频特性在语音识别中,尤其是识别基元选取中有重要作用,其共振峰频率参数也是语音识别和语音合成的重要依据。运用实验语音学的基本理论和方法,在维吾尔语综合语音数据库的办公环境语料条件下,对维吾尔语八个元音进行了声频特性统计分析,给出了维吾尔语元音共振峰频率参数和分布规律,并通过八个元音的语音识别实验结果,验证了其共振峰频率分布规律的正确性。实验证明:维吾尔语在排除元音和谐情况下,其声频特性具有很强的可区分性,对于实现语音信息的传送接受正确性很高。

As a Turkic Altaic language, Uighur has a unique word-building in which its eight vowels have very im portant roles for speech recognition and synthesis, especially for selection of recognition base unit. Focused on the a- coustic frequency characteristics and the formant frequency parameters of the Uighur vowels, this paper adopts the basis theory and method of experimental phonetics to reveal the vowels＇ formant frequency distribution rules on the Uighur synthetic speech database（office environment）. The accuracy of the formant frequency distribution parame ter of Uighur＇s eight vowels is further validated in the speech recognition test. The experiment confirms that the Ui- ghur is more distinguishable in the audio frequency for the correctness in the speech transmission and receival if removing the vowel harmonious phenomena.