identify a single voice among the crowd

Professional footballers beware: the argument you are having with your coach could soon be overheard even within the cacophony of a packed stadium. A new microphone system allows broadcasters to zoom in on sounds as well as sights, to pick out a single conversation.

Physicists Morgan Kjølerbakken and Vibeke Jahr, formerly at the University of Oslo, Norway, were working on sonar technology when they came up with the idea for what they call a supermicrophone, now dubbed the AudioScope. The device is made up of around 300 microphones arranged in a fixed circular array above the sports ground. They are used in conjunction with a wide-angle camera that can zoom in to any position on the pitch. Because the camera is also fixed, it can be calibrated to zoom in to any location within its range.

The AudioScope software then calculates the time it would take for sound emanating from that point to reach each microphone in the circular array, and digitally corrects each audio feed to synchronise them with that spot.

Indeed, silence is a virtue. via.

Technorati Tags: pick out single voice,supermicrophone,stadium technology,audioscope,cacophony,sound zoom,morgan kjolerbakken,vibeke jahr,university of oslo,norwegian technology

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क्या मुझे प्यार है? क्या तुम येह पढ़ सकते हो? और क्या तुम्हारा नाम 'जोकर' है? हिन्दीमा त लेखीयो, बबाल सजीलो हुँदो रहेछ - अब नेपाली लेखेर हेरौं है, कत्तिको राम्ररी लेखिन्छ - भन्ने कुरा गर्ने हो भने तपाइँ मलाई भनी दिनुस कि यो गूगल को नयाँ सुविधा कत्तिको राम्रो लग्छ तपाइँलाई. फेरी पनि तिम्रो तस्बिर, आँखामा आयी दिन्छ अनी फेरी धुलो लागे जस्तो सारा हरायेर जान्छ - यो लेख्नु त majja po रहेछ - it's fun! देवनागरीमा ब्लग लेख्ने होइन त? सच्ची, यो एकदम सजीलो रहेछ - धन्यबाद ब्लगर! But it still needs refinements to be perfect.

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