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Microphone arrays can be used for high quality sound pickup in noisy, reverberating environments. In this paper, we present a novel approach for acoustic beamforming with an uniform linear dyadic sensor array. We introduced an acoustic model of reduced rank dyadic sensor to provide the theoretical background and guidelines for the miniature array beamforming algorithm development. We further developed...
Spherical microphone arrays have been extensively studied for multimedia applications by both academic and industrial communities. General assumption of such study is based upon a planar wave traveling in free space model. However, in practical applications, acoustic wave reflections from boundary of a confined environment such as rooms or nearby furniture's carrying the array may degrade array performance...
Microphone array technology is an area which has generated a lot of interests in recent years. In this paper, a novel beamforming approach using microphone array mounted on the surface of a sound absorbent cylinder is discussed. By introducing of the sound absorbent cylinder with appropriate selected material acoustic characteristics, the “virtual aperture” of the circular array can be enlarged thereby...
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