论文部分内容阅读
连续的汉语三字词声调 ,由于受声道响应、音联、协同发音和变调规律等的影响 ,情况很复杂 ,故其基音提取远远较孤立字困难。文章简述了简化的自相关算法 ,分析了削波电平值对三字词基频检测的影响 ,得出了削波电平的取值范围 ,提出了对三字词基频检测应采取改变削波电平的观点 ,进而给出了三字词的基音提取方法。实验表明该方法简便、有效 ,提取成功率高。文章最后根据实验简述了三字词的变调规律和声调模式。
The continuous Chinese tonal words tone, due to the influence of the channel response, phonetic transcription, co-articulation and translocation laws and so on, is very complicated, so the pitch extraction is far more difficult than isolated characters. In this paper, the simplified autocorrelation algorithm is briefly introduced. The influence of clipping level on the fundamental frequency detection of three-word is analyzed. The range of clipping level is obtained. The detection of the fundamental frequency of three-words Change the viewpoint of clipping level, and then give the method of pitch extraction of three words. Experiments show that the method is simple and effective, high extraction success rate. Finally, according to the experiment, the article briefly describes the rules of variation and tone pattern of three words.