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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Proceedings ArticleDOI
Perceptual Soundfield Reconstruction in Three Dimensions via Sound Field Extrapolation
TL;DR: An active-intensity-based analysis of the rendered sound field shows that the proposed approach can render direction of monochromatic plane waves accurately and be extended to three dimensions using sound field extrapolation carried out in the spherical-harmonic domain.
Proceedings ArticleDOI
PSD estimation of multiple sound sources in a reverberant room using a spherical microphone array
TL;DR: In this paper, the spatial correlation between the spherical harmonics coefficients of a sound field is used to estimate source power spectral densities (PSDs) in a multi-source reverberant environment using a spherical microphone array.
Journal ArticleDOI
Fast direction-of-arrival estimation algorithm for multiple wideband acoustic sources using multiple open spherical arrays
TL;DR: In this paper, the orthonormal propagator method (OPM) is extended to the spherical harmonic (SH) domain using multiple open spherical microphone arrays (SMAs), and the performance results are then compared with those of the SH-MUSIC.
Journal ArticleDOI
Noise source identification for mechanical systems generating periodic impacts
Louis Lefebvre,Frédéric Laville +1 more
TL;DR: In this paper, the radiated sounds under impact excitation of the various system elements are measured and their contribution to the overall system noise is obtained using a signal processing method to extract the various impact source signatures from the overall signal.
Fast in-flight cabin interior sound source localization
TL;DR: In this article, a new sound source localization technique is presented that allows simultaneously the localization of sound sources in the helicopter interior as well as the determination the sound level at certain passenger positions.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more