录音(录音的音量,混音器控制)和播放,格式为音频的原始格式wav,才用底层函数(便于扩展),在录音和播放中显示声音的波形.自认为封装的比较好-recording (sound recording, mixing control), and broadcast audio format for the original wav format, only when the underlying function (scalable), the recording and playback of vo

实时检查混音器，跟踪左右通道得大小，进行调节-Mixing real-time checks, tracking around in the channel size, adjust

webrtc基础音频信号处理，以及CNG模块提取，并向其中附加了G7221C编解码器，用于处理7221音频数据和VAD活动语音检测后的CNG包，用于服务器处理流媒体数据，混音等的操作。-webrtc base audio signal processing, as well as CNG module extracts, to which is added G7221C codec 7221 for processing audio data and voice activity detecti