说明：  该源码是对 *.wav语音波形文件做去直流电平，归一化处理后进行ADPCM编码压缩，形成编码文件和编码文件转转外存格式转化，并利用编码文件做输入，进行解码并生成 *.wav 。该程序算法已经在产品中应用。 已通过测试。
(The source is the do go to the DC level*. Wav voice waveform file, owned by the ADPCM compression coding processing, the formation of coding and encoding files around the external memory format conversion and encoding files as input, decode and generate* . wav. The program algorithm has applications in the product. Has been tested.)