Samsung's opened up about how the engineers in its sound lab build the default tones for your handset.

ENGADGET: Peek inside Samsung's sound lab to see ringtones being born

"These services sound great in the lab right now, " says Rosenbluth.

FORBES: Magazine Article

Lotto's lab in London proves this by having blindfolded test subjects locate objects on the ground by guiding them with sound.

FORBES: Magazine Article