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by Animats
580 days ago
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Beam-forming microphones are quite common. 1D ones are very common for desktop use. 2D ones are ceiling-mounted for conference rooms. This one has 96 microphones. [1] There are even systems which record all the inputs from several hundred small microphones and beam-form later, so an observer can later listen in on any conversation in the room. At least one of those was installed in a prison cafeteria. [1] https://www.nearity.co/products/ceiling-array-microphone-a50 |
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