实现正弦波、三角波、方波的选择，且可以中途刷新；波形的相关参数如幅度、初始相位、频率可调。每周期波形所取的点数由 用户确定。 -Achieve sinusoidal, triangle wave, square wave of selection, and can be set half-way waveform parameters such as amplitude, initial phase, frequency adjustable. Waveform per cycle c

音频PSNR计算，双声道、512个采样点一帧，可自己修改 -audio PSNR caculation\double channel\512 samples per frame\change as your convience

麦克风，喇叭，定时器实现数字录音机的功能，每秒采集数据5000个-Microphone, speakers, digital recorder timer function, collect data per second, 5000

this code for audio compressing with mixed excitation linear prediction with rate 2400 bit per second and can use in many application in send and receive audio. better and advanced version of this program developed and is in use