我正在使用AVCaptureAudioDataOutputSampleBufferDelegate捕获音频_captureSession=[[AVCaptureSessionalloc]init];[self.captureSessionsetSessionPreset:AVCaptureSessionPresetLow];//SetupAudioinputAVCaptureDevice*audioDevice=[AVCaptureDevicedefaultDeviceWithMediaType:AVMediaTypeAudio];AVCaptureDeviceInput*captur