For The Birds: First Tweets, Now A Chirp App

An app that transmits data via a burst of "digital birdsong" aims to simplify the way users share images and other files between smartphones. Chirp plays a two-second long noise that sounds as if it was made by a robotic bird. When heard by other devices it triggers a download. The software was developed by Animal Systems, a spin-off business from University College London.

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