Fazi, Filippo and Nelson, Phillip
The relationship between sound field reproduction and near-field holography
At 129th Convention of the Audio Engineering Society, United States.
04 - 07 Nov 2010.
Full text not available from this repository.
The problem of reproducing a desired sound field with an array of loudspeakers and the technique known as Near-Field Acoustical Holography share some fundamental theoretical aspects. It is shown that both problems can be formulated in terms of an integral equation which usually defines an ill-posed problem. The example of spherical geometry is discussed in detail. It is shown that for both the reproduction and the acoustical holography cases, the ill-conditioning of the problem is greatly affected by the distance between the source layer and the measurement/control surface.
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