Speech acquisition in a noisy environment can be improved by a beamformer which discriminates signals based on their physical location. Numerous beamforming techniques have been proposed for applications such as video conferencing and hands-free speech acquisition in general. This project examines potentials of the Delay and Sum (DS) beamformer combined with a large circular broadband microphone array as an alternative sound recording technique in the Outside Broadcasting. We have developed the core technology and a prototype of a Real Time (RT), user controlled system for audio production with focusing of the sound acquired with a large, directive microphone array. The design aspects of such a system and measurements relevant for an adequate performance are discussed.

Authors: Hafizovic, Ines; Jahr, Vibeke; Kjølerbakken, Morgan
Affiliations: SquareHead Systems AS; University of Oslo(See document for exact affiliation information.)
AES Conference: 31st International Conference: New Directions in High Resolution Audio (June 2007)
Paper Number: 23
Publication Date: June 1, 2007
Subject: High Resolution Audio

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