监听功能（Monitoring video）

是否接收音频

- 回放时，关闭音频接收线程

KHJBaseDevice *dDevice = [[KHJAllBaseManager sharedBaseManager] searchForkey:Uid];

BOOL receiveAudio = YES;
// receiveAudio YES 开始接收， NO 不接收
[bDevice.mDeviceManager startRecvAudio:receiveAudio];

是否播放音频

KHJBaseDevice *dDevice = [[KHJAllBaseManager sharedBaseManager] searchForkey:Uid];

BOOL playAudio = YES;
// playAudio YES 播放， NO 不播放
[bDevice.mDeviceManager isPlayRecvAudio:playAudio];

具体用法见demo.