Spatial filter-based absorbing boundary for the 2-D digital waveguide mesh
نویسندگان
چکیده
منابع مشابه
Physical Modeling with the 2-D Digital Waveguide Mesh
An extremely efficient method for modeling wave propagation in a membrane is provided by the multidimensional extension of the digital waveguide. The 2-D digital waveguide mesh is constructed out of bidirectional delay units and scattering junctions. We show that it coincides with the standard finite difference approximation scheme for the 2-D wave equation, and we derive the dispersion error. ...
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Interpolated and warped digital waveguide mesh algorithms have been developed to overcome the problem caused by direction and frequency-dependence of wave travel speed in digital waveguide mesh simulations. This paper reviews the interpolation methods applicable in the two-dimensional case. The bilinear interpolation technique and two other approaches are briefly recapitulated. The use of 2-D q...
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The 2D digital waveguide mesh [7, 8] has proven to be e ective and e cient in the modeling of musical membranes and plates, particularly in combination with recent simpli cations in modeling sti ness [6], nonlinearities [5], and felt mallet excitations [5]. The rectilinear 3D extension to the mesh had been suggested [8], and has been applied to the case of room acoustics [2]. However, it requir...
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ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 2005
ISSN: 1070-9908
DOI: 10.1109/lsp.2004.840917