Microsoft engineers programmed the original Xbox boot animation to dynamically generate its ambient background noises using actual audio samples recorded in a hallway.

A closer look

Microsoft engineers programmed the original Xbox boot animation to dynamically generate its ambient background noises using actual audio samples recorded in a hallway. Instead of just playing a static audio file like a normal corporate console, it mathematically stretches and manipulates a recording of the Xbox team's office environment to create those creepy alien-like sounds. This absurd level of over-engineering meant the console used a massive chunk of its processing power right at startup just to prove it could. While Sony and Nintendo were focused on making sure their games actually worked, Microsoft decided the most critical feature of their entry into the gaming market was ensuring their start-up screen sounded like a haunted submarine factory