5 points ·
Haptics motors make sound, you can control the pitch by how fast you make the haptics vibrate. Map the vibrate speed to audio frequencies and you can play sounds
Like how they can make an F1 engine play happy birthday https://youtu.be/Tr4zb-HHZs4
Or floppy drives play music
https://youtu.be/yHJOz_y9rZE