Sound surrounds us, from cacophony even to silence. But depending on how we hear, the world can be a different auditory experience for each of us. On this week's show, TED speakers explore the science of sound.

For years, NPR host Mary Louise Kelly found ways to do her job and manage hearing loss. But now she can no longer rely on reading lips or leaning-in. She describes how she's adapting all over again.

Over 30 million people in the U.S. have hearing loss. Neuroscientist Jim Hudspeth explains how the ear's thousands of hair cells function to amplify sound-and how they can be damaged but not repaired.

As a deaf person, Rebecca Knill is anti-noise and "neutral" on sound. She explains how technology allows her to hear what she wants to hear, and asks why our mindset about ability hasn't caught up.

What can we discover when we allow ourselves to sit in silence and just... listen? Sound designer Dallas Taylor explores how tuning into silence is key for understanding the beauty of the sonic