Optimal Haar Wavelet Decompositions on Spherical Sound Fields

Kensuke Fujinoki
2018 ICIC Express Letters  
To represent the sound field of a sphere, optimal parameter values for a set of spherical Haar wavelets forming an orthogonal basis are investigated. The Haar wavelet basis is defined on a sphere, which is sampled using a triangular mesh. Results from numerical experiments yield optimal parameter values that minimize the distortion error of the nonlinear approximation for various sound fields generated using sinusoidal waves of different frequencies.
doi:10.24507/icicel.12.06.535 fatcat:afbzvzlqmzhafpfgx6gtnrjypi