中文摘要：

目前藏语语音基音检测算法相关研究较少，藏语语音基音检测是藏语语音处理过程中的重要环节，其准确性直接影响到系统的性能。介绍中心消波和自相关函数的算法原理及基音检测算法，设计藏语语音基音检测流程，利用Mat-lab进行编程和仿真。通过实验表明该算法结构简单、运算量小，结果较准确，可用于信噪比较低环境下藏语语音辅音的基音估值检测。

英文摘要：

Very little research on Tibetan speech pitch detection has been published. Tibetan speech pitch detection is im-portant part of Tibetan speech processing,whose accuracy affects system performance directly. The center clip algorithm,algo-rithm principle of autocorrelation function and pitch detection algorithm are introduced. The procedure of Tibetan speech pitch detection was designed. The programming and simulation are executed with Matlab software. The result shows that the algorithm has simple structure,accurate result and small amount of calculation. It can be applied to detecting Tibetan speech pitch period in low SNR environment.