To enhance the voice of a conference speaker or student in teleconference and teleteaching, a suitably adapted microphone system is required. This paper proposes a nested array with 13 microphones covering the 80 to 8000 Hz frequency range. Once the array was designed, a digital processing algorithm was constructed. Trials combining measurements in an anechoic chamber and non real-time processing validated the design and showed close agreement between forecasts and measurements.
Authors:
Van Lancker, Eric; Rossi, Mario
Affiliations:
EPFL Ecublens, Lausanne, Switzerland ; Ecole Polytechnique Federale de Lausanne, Switzerland(See document for exact affiliation information.)
AES Convention:
104 (May 1998)
Paper Number:
4693
Publication Date:
May 1, 1998
Subject:
Multichannel Sound Systems
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