Synthesis of Line Source Directivity Patterns
نویسندگان
چکیده
منابع مشابه
Reproduction of sound source directivity for future audio applications
The paper describes different methods devoted to the reproduction of sound source directivity. Although being dedicated to different application domains, they are based on similar physical modelling and rely on array technology driven by signal processing. In the first approach, a 3D array of transducers laid out on the facets of a polyhedron is controlled in order to radiate sound according to...
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The design of time-invariant beamformers is often posed as an optimization problem using practical design constraints. In many scenarios it is sufficient to assume that the microphones have an omnidirectional directivity pattern, a flat frequency response in the range of interest, and a 2D environment in which wavefronts propagate as a function of azimuth angle only. In this paper we consider a...
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The directional properties of bat ears as receivers is a current area of interest in ultrasound research. This paper presents a new approach to analyse the relationship between morphological features and acoustical properties of the external ear of bat species. The beam pattern of Rousettus leschenaultii's right ear is measured and compared to that of receiver structures whose design is inspire...
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Linear and planar antenna arrays are synthesized to have maximum directivity for a specified sidelobe level. The directivity is maximized subject to a given SLL. The beamwidth and the zeros of array factor are studied as well as the directivity. Maximum directivity-arrays are compared through some examples with super-directive, uniform, Dolph-Chebyshev and Riblet-Chebychev arrays to find a comp...
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Auralizations are very useful in the design of performing arts spaces, where auralization is the process of rendering audible the sound field in a space, in such a way as to simulate the binaural listening experience at a given position in the modeled space. One of the fundamental modeling inputs to create auralizations is the source directivity. Standard methods involve inputting the measured ...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1951
ISSN: 0001-4966
DOI: 10.1121/1.1917277