摘要
在语音信号的处理中,常需要将线性预测系数(LPC)与线谱对频率参数(LSF)相互转换。利用余弦函数特性改进的Chebyshev多项式求根算法,将余弦函数转换为高次幂函数再进行搜索求根来实现语音特征的LPC参数与LSF参数的转化。
In speech processing, transformation between LPC and LSF is usually needed, Chebyshev polynomial root algorithm is adopted in the paper. According to characteristic of cosine function, the algorithm transforms cosine function into high power function and searches the roots. Transformation of LSF parameter and LPC parameter has been realized.
出处
《信息技术》
2009年第5期229-231,共3页
Information Technology
