PCM\Apcm.m ...\Apcmexprand.m ...\Apcmreal.m ...\junyun.m ...\pcmcode.m ...\PCMcoding.m ...\pcmdecode.m ...\pcm_value.mat ...\shuchu_value.fig ...\signal_process.m ...\sinc.m ...\test.m ...\testxu.m ...\testxuSin.m ...\ypcm.m ...\说明.txt PCM