A Microphone Array for Multimedia Workstations

A microphone array devoted to multimedia workstations is presented. This array, which was designed according to basic beam-forming principles, is made of subarrays, each characterized by a specific intersensor spacing. It is shown that accurate control of the directivity can be achieved over a given...

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Veröffentlicht in:	Journal of the Audio Engineering Society 1996-05, Vol.44 (5), p.365-372
Hauptverfasser:	Mahieux, Yannick, Le Tourneur, Grégoire, Saliou, Alain
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustical measurements and instrumentation Acoustics Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics Transduction acoustical devices for the generation and reproduction of sound
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Beschreibung
Zusammenfassung:	A microphone array devoted to multimedia workstations is presented. This array, which was designed according to basic beam-forming principles, is made of subarrays, each characterized by a specific intersensor spacing. It is shown that accurate control of the directivity can be achieved over a given range of frequencies by combining these subarrays in a proper way. The measurement of its acoustic behavior and its use in real multimedia applications have shown that in spite of its low cost, this array yields a great improvement in speech quality when compared to a single microphone.
ISSN:	1549-4950 0004-7554