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I think you might be talking about Shazam

You know, it's actually possible that they do? There's a service called Shazam where you can call them up, hold the phone up to some music that's playing, and then they'll text you back the title of the song. It's always worked for me, even when I was beign played the song by a send who over Google Talk. If the tech exists to identify a song from a 20 second clip at phone quality from a low-quality source, I dread to think how quickly and accurately they could do it with direct access to whatever mp3/ogg/wma/wav you were trying to share.

This is what I'd assumed it was doing (a bit like this).

Wouldn't it be cool if you could serach for images in a similar fashion. You could have a 10x10 grid where you could place different colours ("The image I'm looking for was light blue in the top half and green in the bottom half")...

Yahoo's been doing a lot of cool stuff recently (eg their Creative Commons Search) but for some reason they don't seem to get the recognition that Google has.

yes, it's automated. there are a couple of companies that develop fingerprinting algorithms for audio:

http://www.gracenote.com/gn_products/mobileMusic.h tml
http://www.shazamentertainment.com/technology.shtm l

Unless AT&T have come up with their own algorithms, this is probably a re-selling of the service from Shazamentertainment who have several over mobile operators on their books. They use a proprietary pattern recognition technology (patent-pending) that can identify recorded audio even under noisy conditions. The Shazam service runs on a hosted service platform and is driven by Europe's largest music information database - over 1,600,000 music tracks, metadata and cover art - that was built by Shazam.

Unless AT&T have come up with their own algorithms, this is probably a re-selling of the service from Shazamentertainment who have several over mobile operators on their books. They use a proprietary pattern recognition technology (patent-pending) that can identify recorded audio even under noisy conditions. The Shazam service runs on a hosted service platform and is driven by Europe's largest music information database - over 1,600,000 music tracks, metadata and cover art - that was built by Shazam.

I wonder if AT&T have licenced technology from shazam. More about their technology here.