自己编写的MediaPlayer源码，由BCG控件实现，实现最简单的音乐播放功能，可以更改界面的颜色及透明度，界面比较美观-I have written MediaPlayer source from BCG control achieved, the realization of the simplest music player function, you can change the color and transparency of interface, interface aesthe

加噪，为音频信号加上噪声，频率设置为22050hz，音频可以自己设置。更改fn即可。-Adding noise, the audio signal plus noise, the frequency is set to 22050hz audio set up their own. Change the fn can be.

在语音信号处理中，来完成对语音信号的分帧处理，这里的帧长可以自己更改-In speech signal processing, to complete the speech signal processing, the length of the frame can change their own