Google targets ads by listening
Google is working an a system that listens to what you are watching on tv. It then compares that sound samples against an audio database so it can identify what you are watching. The hope is that they can then present you will relevant ads or create social networks with like minded people.
Using a computer to capture ambient sound in the room, the system can identify a show based on only 5 seconds of audio.
BBC News: Google listens to screen routine
Tags: google, audio, ambient
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