实现录音并且保存录下的语音文件，同时能够进行播放，播放时可暂停-Recording and save the recorded voice files to be able to play at the same time, to pause playback

打开工程文件voice_simulation1.1。程序实现了语音信号的采集，封装及还原。-Open the project file voice_simulation1.1. Realized by the acquisition, packaging and reduction of the speech signal.

四路语音信号采集，并将采集到的数字信号保存为文件输出-Four audio signal acquisition, and save the collected digital signal output file

交互式选择wav文件，显示WAV文件的通道数，量化精度，总样本数，文件名，并用Chart显示各通道波形。(Interactively select the wav file, display the number of channels WAV file, quantization accuracy, the total sample number, file name, and show the waveform of each channel using Chart.)