中文说明：本代码为音频分析工具包，可配合学习葛哲学，陈仲生等人著作的《Matlab时频分析技术及其应用》一书。
English Description：
The code for audio analysis Toolkit which can be GE philosophy, learning, Chen Zhongsheng, who works on the Matlab book, technology and application of time-frequency analysis.