### **混音录制** 说明：在mp3/mp4/ppt播放时进行正常录音录像 如需开启混音录制，请在AnyChatSDK示例中设置属性isOpenMixAudio为YES. @property (nonatomic,assign)BOOL isOpenMixAudio; 示例：[AnyChatSDK getInstance].isOpenMixAudio = YES;