Video recording has no Audio?

Simple steps, to implement as you want:

1. Get your capture device for video (AVMediaTypeVideo)
2. Get your capture device for audio (AVMediaTypeAudio)
3. Create your video input (AVCaptureDeviceInput with video device)
4. Create your audio input (AVCaptureDeviceInput with audio device)
5. Configure your capture session (AVCaptureSession) via beginConfiguration()
6. Add Inputs to capture session via addInput()
7. Commit configuration via commitConfiguration()