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
More filters
Journal ArticleDOI
Finite element analysis of acoustic streaming in a Kundt tube with bended wall
Yuji Wada,Kohei Yuge +1 more
TL;DR: In this paper, optical observation showed that numerous microsystis cells aggregated due to the acoustic radiation force of standing wave formed in the polymer cell and the spatial interval between the aggregates was 500 m~1 mm, which approximately corresponded to the wavelength of 2.8-MHz ultrasound.
Proceedings ArticleDOI
Three-dimensional sound field reproduction based on multi-resolution sparse representation
TL;DR: Simulation results show that the proposed method can improve the 3D reproduction performance with a few active loudspeakers and enlarge the size of the spatial sweet spot.
Journal ArticleDOI
Modelling vibro–acoustic response of lightweight square aluminium panel influenced by sound source locations for active control
TL;DR: In this paper , the structural-acoustic response of a lightweight square aluminium panel is analyzed using finite element method and first-order deformation theory, and the results show that different locations of the primary sound source significantly influence the response of the structural panel to reduce noise.
Journal ArticleDOI
Acousto-optic effect compensation for optical determination of the normal velocity distribution associated with acoustic transducer radiation
TL;DR: A general method of compensation is developed for a pulsed harmonic pressure field transmitted by an acoustic transducer, in which the laser beam can transit the Transducer nearfield, and can enable quantification of edge-wave and baffle effects on transducers radiation.
Patent
Method and device for processing a digital audio signal for binaural reproduction
Krüger Alexander,Rasumow Eugen +1 more
TL;DR: In this paper, a method for processing a digital audio signal, which is presented as a 3D sound field description in HOA format of the order N, into a binaural reproduction format containing: filtering of the rotated 3D SDF description with rendering filters (21 L, 21 R) according to head-related impulse responses (HRIR) for a left channel and a right channel, a summation (25L, 25R) of the output signals from the rendering filters into intermediate signals (ZLi, ZR) for the left and right channels, and
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more