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
Citations
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Proceedings Article
Inversewave propagation for reproducing virtual sources in front of loudspeaker array
TL;DR: A new combination of wave field synthesis with inverse wave propagation that can recreate sound field reproduction technique that reconstructs sound pressure distribution by using a planar or linear loudspeaker array is presented.
Proceedings ArticleDOI
Analytical Method to Convert Circular Harmonic Expansion Coefficients for Sound Field Synthesis by Using Multipole Loudspeaker Array
TL;DR: The proposed method reproduces not only directivity patterns but also phases of the radiated sound from a target sound source, thereby enabling accurate sound field synthesis and achieving more accuratesound field reproduction than an existing pressure-matching-based method at higher frequency regions.
Towards real-time detection of plate vibrations from acoustic measurements
TL;DR: In this paper, the Fourier-based Planar Nearfield Acoustic Holography (FPNAH) was used to measure the vibrations of plate-like structures, where a simply supported plate was used as a source of sound.
Posted Content
Near field Acoustic Holography on arbitrary shapes using Convolutional Neural Network.
TL;DR: In this article, a convolutional neural network (CNN) was proposed to estimate the vibrational velocity field of a structure by means of acoustic measurements. But the proposed method is not suitable for near-field Holography (NAH).
Journal ArticleDOI
Directive and focused acoustic wave radiation by tessellated transducers with folded curvatures
TL;DR: This research presents a first approach to design, evaluate, and iteratively refine the tessellations that make up origami-inspired acoustic transducer arrays for desired wave guiding abilities.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more