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Separate subspecies of the fork-tailed flycatcher make different trill sounds with their wing feathers.

Charles Q. Choi, Contributor

Findings suggest sound was not the primary focus of the Stonehenge architects.

Tom Metcalfe, Contributor

Speakers set on bars inside the windows cancel out unwanted noise, using technology similar to that in noise-canceling headphones.

Charles Q. Choi, Contributor

Researchers can now measure individual phonons -- a single unit of sound.

Yuen Yiu, Staff Writer

Insect hearing systems are inspiring new microphone designs that can better identify the direction a sound comes from.

Bailey Bedford, Contributor

New findings suggest that ordinary sound has negative gravitational mass.

Charles Q. Choi, Contributor

A better understanding of how humans detect different voices may help design better voice recognition software.

Yuen Yiu, Staff Writer

A new way to measure vibrations may eventually help detect gravitational waves and store quantum memory.

Yuen Yiu, Staff Writer

Algorithms for mixing and mastering audio are having a growing impact on what we hear.

Katharine Gammon, Contributor

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