一种基于窗长自适应的语音信号处理算法

Speech Signal Processing Algorithm Based on Adaptive Window

首先指出固定窗长的窗函数在处理复杂语音信号时,通常会遇到保持短时平稳性和准确性的矛盾。继而提出一种窗长可以自适应的算法来解决问题,在维持短时平稳性的同时保证准确性。实验结果表明,通过窗函数的窗长自适应来响应复杂信号的频率变化,能够更准确、更有效地处理语音信号。

From a problem between short time stationarity and accuracy, when processing complex speech signal with fixed window, to resolve this problem, an algorithm for adaptive window is proposed. This algorithm can guarantee accuracy and short time stationarity simultaneously. Simulation results show that, complex speech signal can be processed more accurately and more effectively, by using adaptive window to respond to the frequency changes.