Squarehead’s Audioscope, Zoom in Audio Using 315 Microphones

Audioscope is a concept by the Squarehead’s Norwegian physicists Morgan Kjølerbakken and Vibeke Jahr. It’s a system created for isolating audio spots from all kind of sources, even noisy environments. It was developed for basketball stadiums, where Audioscope can focus on a single element in the crowd. For example, you can hear the pop of a bubblegum bubble in the middle of the game.

Audioscope is a high-performance audio capturing system which allows the user to record and zoom in on sound sources like you zoom in on visual images with a camera. Through a highly intuitive graphical user-interface with an overview video monitor, the operator selects the on-screen source which he or she wishes to focus on. All the sound from the selected source is amplified while the surrounding noise is suppressed. Up to five sources of interest can be selected simultaneously. In a ball game the operator can listen to both coaching benches, the referee and follow the game on the pitch.

Audioscope packs 315 microphones in a carbon-fiber dish above the stadium. An operator can control all the mics, using a control station where he can monitor the picture and move the cursor to the source, using a trackball. The audio signal coming from all microphones is stored in separate channels and the operator can select up to five audio sources simultaneously.

The system is connected through the Audioscope Connection Unit, which controls the communication between one Audioscope Dish and up to three AudioScope Control Stations. One Connection Unit can also be connected to as many as five EVS units and receive time codes to synchronize replays.

You can hear some examples in the following video:

For more information, visit Squarehead. (via Wired)

Thanks to Charles Maynes for the link!

Comments

4 responses to “Squarehead’s Audioscope, Zoom in Audio Using 315 Microphones”

  1. Jon Clark Avatar
    Jon Clark

    So much for privacy…

    Actually, I was in a meeting at Microsoft several years ago where some of the brain trust were showing us new developments in directional microphones using arrays and phasing to ‘direct’ the pickup.

  2. Ryan Avatar
    Ryan

    I wonder how good it sounds close-up (I.E. when it’s hung only about 30 feet in the air as opposed to 100 like at the Laker’s game) and if this can be a substitute for a sound-stage or sitcom TV show which is shot on a smaller set – could do away with the need for boom operators…

  3. Jonathan Murray Avatar
    Jonathan Murray

    I have to laugh at the suggestion that this thing was developed for use in “Basketball arenas” 🙂 That may be a good location to test and demo the device but believe me this little thing was developed for a market with a lot more money to spend i.e. national security. Expect to see these devices turning up at an airport, government office or a public space near you soon.

    Very nice technology from the boffins but any expectation about the privacy of your conversations in a public space just took a nose dive.

  4. Ethan Avatar
    Ethan

    Makes me wonder if a new season of The Wire is coming out.

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