Just like GPS with location services, SoundPrint, a new technology created by IntoNow, allows you to automatically “check-in†to watching a show simply by hitting a button in the IntoNow app. How? It reads the sound waves and patterns of each television show (and a growing collection of movies as well) and matches it with a database they keep. Yep, it’s a lot like Soundhound or Shazam, but for video content.
via IntoNow Can Hear What You’re Watching On TV. The Media Check-In Game Just Changed..