Hee hee. No, it isn't to do with real birds although I do have that uk birds app Stranding. Gizmodo thinks this is going to be huge in the future. Here's some blurb about it.
A new Apple iOS app that transmits data via "virtual birdsong" is making file sharing between smart devices easier than ever. "Chirp" is the brainchild of Animal Systems, a company started by researchers in the Computer Science Department at the University College of London.
Essentially, the app emits a two-second noise that sounds as if it were made by a robotic bird. The noise indicates that an instant download is being received from a trusted source.
App Uses Sound to Transfer Data
To send a chirp, an individual simply activates the app from their smartphone and selects the desired recipients.
Next, the user chooses a file to send (a stored file or even a newly-taken photograph) and pushes a big yellow button. The chirp is instantly sent out to a worldwide audience.
The ability of the recipient to push his or her own big yellow button and forward the received file to a new list of contacts makes Chirp the fastest way possible for a file to go viral.
The data itself does not travel via the sound. Rather, the chirp contains two proprietary protocols (an audio protocol and a network protocol).
Basically, the app first uploads the content to the cloud, then creates a unique code for the content and converts that code into sound. The sound is received by the recipient's app, which decodes it. (Source: computerworld.com)
Another feature: users can start a chirp offline. The next time the device connects to the Internet, the content begins to download automatically.
It works really well. However my daughter loves the oscilloscope on it and they can check out their soundwaves when they speak into the phone.
Sent from my new iPad using iPF