An App That Helps You Hear High-Pitched Bird Songs

For years, nature recordist Lang Elliott came up with clever ways to hear high-pitched bird songs despite his high-frequency hearing loss. Lang teamed up with a programmer to develop an app called Hear Birds Again. Currently it’s only available for iPhones, but it’s able to take high-pitch bird songs and shift them down into a lower range.

More info and transcript at BirdNote.org. 

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