This project features a full-hardware sound compressor using the well known algorithm: IMA ADPCM. The core acts as a slave WISHBONE device. The output is perfectly compatible with any sound player with the IMA ADPCM codec (included by defau

i2s协议时飞利浦公司专门为开发音频而开发的协议，这是它的VHDL代码，希望有帮助-i2s agreement, Philips developed specifically for the development of the audio protocol, which is its VHDL code, and want to help

PPM编码 PPM的编解码方式一般是使用积分电路来实现的，而PCM编解码则是用模/数（A/D）和数/模（D/A）转技术实现的。 -PPM encoding PPM codec integral circuit, the PCM codec with analog/digital (A/D) and digital/analog (D/A) transfer technology.