Optimized Finite Element Method for Acoustic Scattering Analysis With Application to Head-Related Transfer Function Estimation
| Autor: | Mahdi Farahikia, Quang T. Su |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Logarithmic scale
Angle of rotation Physics Plane (geometry) Scattering Acoustics General Engineering 020206 networking & telecommunications 02 engineering and technology Acoustic source localization 01 natural sciences Head-related transfer function Finite element method Wavelength 0103 physical sciences 0202 electrical engineering electronic engineering information engineering 010301 acoustics |
| Zdroj: | Journal of Vibration and Acoustics. 139 |
| ISSN: | 1528-8927 1048-9002 |
| DOI: | 10.1115/1.4035813 |
| Popis: | Obtaining head-related transfer functions (HRTFs) is a challenging task, in spite of its importance in localizing sound in a three-dimensional (3D) environment or improving the performance of hearing aids, among their various applications. In this paper, an optimized finite element method through adaptive dimension size based on wavelength (frequency) for acoustic scattering analyses using ansys is presented. Initial investigation of the validity of our method is conducted by simulating scattered sound field for a solid sphere exposed to a far-field plane sound wave at 100 (equally spaced in logarithmic scale) frequencies between 20 and 20 kHz. Comparison of the equivalent HRTF results between the two methods shows a maximum deviation of less than 0.6 dB between our method and the analytical solution depending on the angle of rotation of the sphere with respect to sound source. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|