Sound QR codes offer new advertising possibilities

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We have already seen SonicNotify offer a way for advertisers and event organisers to deliver content to smartphones using inaudible sound waves, and now UK-based app Chirp is also aiming to turn sound into a vehicle for data transmission. Users begin by selecting a URL or uploading a file they would like to send to another smartphone owner. The app then converts the link into a series of 20 short notes – known as a chirp. When others have the app running, the phone 'listens' to the chirp and displays a link to download the content being sent. The app…

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