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Paired Ellipsoidal Screen System for Teleconferencing

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An audio system is proposed for personal teleconferencing. One sound reflective ellipsoidal screen faces the attendee such that his speech is focused on a microphone behind him. A second screen lies behind the microphone. A loudspeaker is placed at one focal point of the second screen while the attendee's position lies at the other. Howling and echo are virtually eliminated.

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AES - Audio Engineering Society