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 143Autoren: Koch, Andreas / Rau, Mark / Schilling, Andreas / Ziegler, Jonathan
Hrsg.: Audio Engineering Society
Erscheinungsjahr: 2017
Weiterführende Links:
http://www.aes.org/e-lib/browse.cfm?elib=19274
Dateianhänge:
Autoren
- Name:
-
Prof.
Dr. Andreas Koch
- Forschungsgebiet:
- Künstliche Intelligenz
- Funktion:
- Prodekan
- Lehrgebiet:
- Nachrichtentechnik, Elektronik, Technische Informatik, Künstliche Intelligenz
- Studiengang:
- Audiovisuelle Medien (Bachelor, 7 Semester)
- Fakultät:
- Fakultät Electronic Media
- Raum:
- 318, Nobelstraße 10 (Hörsaalbau)
- Telefon:
- 0711 8923-2249
- Telefax:
- 0711 8923-2207
- E-Mail:
- kocha@hdm-stuttgart.de
- Homepage:
- www.hdm-stuttgart/kocha
- Name:
- Mark Rau
- Name:
- Andreas Schilling
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