In the episode of the excellent podcast "99% Invisible", there is a story of how the iOS unlocking sound was created: http://99percentinvisible.org/post/323099

In the episode of the excellent podcast "99% Invisible", there is a story of how the iOS unlocking sound was created: http://99percentinvisible.org/post/3230995265/episode-15-the-sound-of-the-artificial-world http://99percentinvisible.org/post/3230995265/episode-15-the...