Sound field calculation for rectangular sources
نویسندگان
چکیده
منابع مشابه
Random sources for rectangular far fields.
A class of random sources producing far fields with rectangular intensity profiles is introduced by modeling the source degree of coherence with the help of two one-dimensional multi-Gaussian distributions. By changing the rms correlation widths along the x and y directions and the number of terms in the summation of the multi-Gaussian functions, the shapes and the edge sharpness of the beams c...
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Sound field synthesis techniques like Wave Field Synthesis and Higher-Order Ambisonics aim at the physical synthesis of a desired sound field over an extended listening area. However, for practical setups the accuracy up to which the desired sound field can be synthesized over an extended area is limited. For certain applications it is desirable to limit the spatial extent of the listening area...
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A preliminary investigation is presented of horizontal sound field control using a rectangular array of spherical wave driving sources, with focus on wide area plane wave reproduction. Comparison is made between Wave Field Synthesis and a method based on distributed pressure and velocity constraints. Advantages of the second approach are discussed, and modifications of the both methods are prop...
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The neareld problem is a source of anxiety with beamforming techniques. We propose a strategy to solve the neareld problem by using a subtractive beamforming technique. The authors earlier proposed a method for noise reduction using paired-microphones. In this paper, the method is improved for neareld sound sources. The proposed method can maintain a high performance regardless of the distance ...
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If the shots deviate from the center and are distributed, the method is unprecise and inaccurate. If the dispersion is small, but beside the target, the method is precise but not accurate. Standardisation of methods is a way to improve the precision. More complex and scientific methods may be more accurate, but they offer many screws to adjust the result – different persons will get different r...
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ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
سال: 1989
ISSN: 0885-3010
DOI: 10.1109/58.19157