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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Journal ArticleDOI
Multisource statistically optimized near-field acoustical holography.
TL;DR: It is shown that M-SONAH can reconstruct near-field pressures in multisource environments with lower errors and fewer measurements than a strictly plane or cylindrical-wave formulation using the same simulated measurement.
Journal ArticleDOI
Generalized Spherical Array Beamforming for Binaural Speech Reproduction
Noam R. Shabtai,Boaz Rafaely +1 more
TL;DR: A mathematical framework for generalized spherical array beamforming that in addition to suppressing noise and reverberation, is aiming to preserve spatial information on the sources in the recording venue to increase the intelligibility of a speech signal perceived by a human listener.
Proceedings ArticleDOI
Reproduction of focused sources by the spectral division method
Sascha Spors,Jens Ahrens +1 more
TL;DR: In this article, the authors present an approach to the reproduction of focused sources with linear loudspeaker arrays based on a representation of the respective fields in the spatio-temporal frequency domain.
Journal ArticleDOI
Reconstruction of vibroacoustic fields in half-space by using hybrid near-field acoustical holography
Xiang Zhao,Sean Wu +1 more
TL;DR: The accuracy and efficiency of reconstructing the vibroacoustic quantities generated by a vibrating structure in half-space by using hybrid near-field acoustic holography (NAH) and modified Helmholtz equation least squares (HELS) formulations are examined.
Journal Article
Directivity of Artificial and Human Speech
TL;DR: In this paper, a study of how the directivity characteristics of artificial mouths correspond to the directivities of a real speaker is presented, where the basic mechanisms that produce the directive patterns are discussed, and the contribution of the speech content is shown.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more