Aufsatz

Interpolation and Display of Microphone Directivity Measurements Using Higher Order Spherical Harmonics

The accurate display of frequency dependent polar response data of microphones has largely relied on the use of a defined set of test frequencies and a simple overlay of two-dimensional plots. In recent work, a novel approach to digital displays without fixed frequency points was introduced. Building on this, an enhanced interpolation algorithm is presented, using higher-order spherical harmonics for angular interpolation. The presented approach is compared to conventional interpolation methods in terms of computational cost and accuracy. In addition, a three-dimensional data processing prototype for the creation of interactive, frequency-dependent, three-dimensional microphone directivity plots is presented.


Erschienen in:

Audio Engineering Society Convention 143
Autoren:
Hrsg.: Audio Engineering Society
Erscheinungsjahr: 2017

Weiterführende Links:
http://www.aes.org/e-lib/browse.cfm?elib=19274


Autoren

Eingetragen von

Name:
Jonathan Ziegler  Elektronische Visitenkarte


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