Super Hearing

Super Hearing is the ability to perceive sounds of varying volume or pitch beyond the scope of normal human capability. Certain characters with this ability can develop enough control to block out ambient sounds to focus on a specific source or frequency. As such, they can identify a person by their heartbeat, or pick out a single voice in an entire city.

Kryptonian's Super Hearing
Controlled by the cochlea, Kryptonians can use this ability to hear vast varieties of sound ranging from the human pitch of audio to ranges of ultrasonic to infrasonic. With enough mastery over the hearing function, they can control what to hear and how to hear it.