If you time it just right and open the door after the numbers disappear but before the beepy-beeps, you might just experience the greatest joy known to man, on par with witnessing the logo hit the corner of screen.
(Note: frequencies this low could cause discomfort or even damage to your ears, make sure your volume is at an appropriate level before hitting play, especially if you have headphones in)
Mine does some, then waits, then does some again, until you open it. Terrible because there’s enough silence to ignore it, but the beeps are still often enough to be annoying, so your stuck in a constant indecision between getting up and opening the door, and just staying and working since it’s quiet now.