语音信号的采集与处理，数字信号处理课设，实现用SDRAM运行nios，同时用SRAM保存摄像头数据，可以广泛的应用于数据预测及数据分析。- Acquisition and Processing of the speech signal, digital signal processing class-based, Implemented with SDRAM run nios, while saving camera data SRAM, Can be widely used in data analysis and forecast data.