vc++源码，消除回声处理， 可用于音频处理； -vc++ source code, deal with the elimination of echo can be used for audio processing

verilog代码。利用音频信号上采样8倍，然后对audio做pwm调制。-verilog code.upsample audio date 8 times and output pwm of audio.

这个是关于音频方面的SOPC设计，这个源代码是软硬件协同设计，包括verilog和C语言设计两个部分，验证，可以通过。-This is about the audio side of SOPC design, the source code is the hardware and software co-design, including verilog and C language design two parts, verification, you can.