ADPCM的matlab算法，很简单，一般人都能看懂。-Matlab the ADPCM algorithm, is very simple, ordinary people can understand.

The ADPCM package is a flexible simulation tool for an adaptive differential encoder and decoder with backward predictor adaptation. It uses an LP-based (Burg) adaptive predictor and a nonuniform quantizer with mu transfer function. It generates the

ADPCM编译码器，可以将语音信号转换为ADPCM码，并将其译码为原声音源。(ADPCM encoder and decoder)