YouTube user lunarmodule5 has collected audio and video from all six Apollo lunar landings into a single, six-minute viewing experience, realigning the footage by 45-degrees to give a pilot's-eye view of each module's descent.
What you hear are selected segments of actual audio from the landings, picked out by lunarmodule5 and arranged in near-perfect timing with their respective footage. It's incredible to listen to – you can hear the anticipation in the voices as the modules approach the surface, and the excitement following touchdown. (I've watched through a few times now, and the exuberant "woop!" – heard from mission control around the 5:22 mark – makes me grin like an idiot every time.)