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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Journal ArticleDOI
Reproducing Virtual Sound Sources in Front of a Loudspeaker Array Using Inverse Wave Propagator
TL;DR: The proposed method for recreating virtual sound sources in front of a planar or linear loudspeaker array is based on wave field synthesis but extended to include the inverse wave propagator often used in acoustical holography.
Journal ArticleDOI
Vibration and Sound Transmission Performance of Sandwich Panels with Uniform and Gradient Auxetic Double Arrowhead Honeycomb Cores
Qing Li,Deqing Yang +1 more
TL;DR: In this paper, the spectral element method was employed to accurately evaluate the natural frequencies and dynamic responses with a limited number of elements at high frequencies, and the results indicated that the vibrating mode shapes and deformations of the DAH sandwich models were strongly affected by the patterned gradient metamaterials.
Representation of sound fields for audio recording and reproduction
TL;DR: The analysis includes the representation of near-field sources and the choice of basis functions used for the representation and some of the properties of the various approaches are discussed.
Can we hear the shape of a noise source
TL;DR: In this article, the authors introduce a brief history of sound visualization, which is associated with "sound visualization", from Leonardo da Vinci's famous drawing on vortex street to modern acoustic holography and what has been accomplished by a line or surface array.
Dissertation
Scan-based sound visualisation methods using sound pressure and particle velocity
TL;DR: The Scan and Paint technique as mentioned in this paper is based on the acquisition of sound pressure and particle velocity by manually moving a p-u probe (pressure-particle velocity sensor) across a sound field, whilst filming the event with a camera.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more