Open AccessBook
Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography
Earl G. Williams,J. Adin Mann +1 more
TLDR
The Inverse Problem: Cylindrical NAH. as discussed by the authors The Inverse problem: Planar NAH and the Inverse NP-hardness of planar plane waves.Abstract:
Preface. Fourier Transforms & Special Functions. Plane Waves. The Inverse Problem: Planar NAH. Cylindrical Waves. The Inverse Problem: Cylindrical NAH. Spherical Waves. Spherical NAH. Green Functions & the Helmholtz Integral. Index.read more
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Nearfield structure-borne sound holography
TL;DR: In this article, the authors developed a theoretical platform for nearfield structure-borne sound holography, useful to predict velocity and forces acting on a plate, as well as the transmitted power of source-receiver installations.
Measurement of incident sound power using near field acoustic holography
TL;DR: In this paper, the authors examined a new method of determining this quantity from sound pressure measurements at positions on the wall using "statistically optimised near field acoustic holography" (SONAH), and examined whether one should use a correction similar to the well-known Waterhouse correction when the incident sound power is deduced from the sound pressure in the source room.
Journal ArticleDOI
Modeling Speech Sound Radiation With Different Degrees of Realism for Articulatory Synthesis
Peter Birkholz,Steffen Ossmann,Rémi Blandin,Alexander Wilbrandt,Paul Konstantin Krug,Mario Fleischer +5 more
TL;DR: In this paper , the authors simulated two alternative radiation characteristics that are potentially more realistic: the radiation from a vibrating piston in a spherical baffle, and radiation from the mouth of a detailed model of the human head and torso.
Proceedings ArticleDOI
How to design a delay-and-sum beamformer for rigid rotationally symmetric arrays?
TL;DR: Two novel techniques with low computational complexity and high robustness for beamforming using rigid microphone arrays are presented and the technique of focused sinks is exploited for creating virtual linear microphone arrays with flexible dimensions and spacing.
Proceedings ArticleDOI
Compressed sensing based multi-zone sound field reproduction
Feng Qipeng,Yang Feiran,Yang Jun +2 more
TL;DR: Simulating results demonstrate that the proposed method needs a relatively small number of microphones for accurate multi-zone sound field reproduction and is reduced to plane wave reproduction over a single spatial region.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more