计算时间和二维直方图,语音信号的采集与处理，数字信号处理课设，STM32制作的MP3的全部资料。- Computing time and two-dimensional histogram, Acquisition and Processing of the speech signal, digital signal processing class-based, STM32 all the information produced by the MP3.

Based on multi-document image obtained combining technique, Gaussian white noise generator, Achieve serial data acquisition.