利用51单片机进行语音存储与回放系统的源程序，包涵PCM,DPCM,ACM三种录音方式 按键功能：F1--PCM录音 F2--DPCM录音 F3--ADM录音 F4 --停止 5 -- 放音 0 -- 暂停 4 -- 慢放 6 -- 快放-The use of 51 single-chip voice storage and playback system source code, includes PCM, DPCM, ACM tape recording of the three key

matlab based call progress tone detector, can be the reference code for c/asm based implementation

Principal component analysis model for establishing, A noise auxiliary data analysis method, Automatic identification in the matlab environment the size of the connected area.