Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR
×
Cite This
Citation & Abstract
K. Young, G. Kearney, and AN. I.. Tew, "Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR," Paper EB2-9, (2018 July.). doi:
K. Young, G. Kearney, and AN. I.. Tew, "Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR," Paper EB2-9, (2018 July.). doi:
Abstract: Binaural audio research frequently employs head-related transfer functions (HRTFs). However, acoustic measure- ment of large numbers of HRTFs can be impractical. An alternative is boundary element method (BEM) simulation using 3D meshes. This paper describes the acoustic validation of a 3D mesh of KEMAR, previously validated against the manufacturer’s CAD file. Differences between acoustic and simulated binaural cues were analysed for consistency. After compensating for systematic errors, the mean difference in interaural time difference was 23.96 µs. The mean differences in monaural and interaural spectral content were 1.92 dB and 2.42 dB, respectively. It is concluded that the mesh is suitable for BEM simulations below 20 kHz, provided that just-noticeable perceptual differences are acceptable, and should prove useful in a variety of research applications.
@article{young2018acoustic,
author={young, kat and kearney, gavin and tew, anthony i.},
journal={journal of the audio engineering society},
title={acoustic validation of a bem-suitable 3d mesh model of kemar},
year={2018},
volume={},
number={},
pages={},
doi={},
month={july},}
@article{young2018acoustic,
author={young, kat and kearney, gavin and tew, anthony i.},
journal={journal of the audio engineering society},
title={acoustic validation of a bem-suitable 3d mesh model of kemar},
year={2018},
volume={},
number={},
pages={},
doi={},
month={july},
abstract={binaural audio research frequently employs head-related transfer functions (hrtfs). however, acoustic measure- ment of large numbers of hrtfs can be impractical. an alternative is boundary element method (bem) simulation using 3d meshes. this paper describes the acoustic validation of a 3d mesh of kemar, previously validated against the manufacturer’s cad file. differences between acoustic and simulated binaural cues were analysed for consistency. after compensating for systematic errors, the mean difference in interaural time difference was 23.96 µs. the mean differences in monaural and interaural spectral content were 1.92 db and 2.42 db, respectively. it is concluded that the mesh is suitable for bem simulations below 20 khz, provided that just-noticeable perceptual differences are acceptable, and should prove useful in a variety of research applications.},}
TY - paper
TI - Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR
SP -
EP -
AU - Young, Kat
AU - Kearney, Gavin
AU - Tew, Anthony I.
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - July 2018
TY - paper
TI - Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR
SP -
EP -
AU - Young, Kat
AU - Kearney, Gavin
AU - Tew, Anthony I.
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - July 2018
AB - Binaural audio research frequently employs head-related transfer functions (HRTFs). However, acoustic measure- ment of large numbers of HRTFs can be impractical. An alternative is boundary element method (BEM) simulation using 3D meshes. This paper describes the acoustic validation of a 3D mesh of KEMAR, previously validated against the manufacturer’s CAD file. Differences between acoustic and simulated binaural cues were analysed for consistency. After compensating for systematic errors, the mean difference in interaural time difference was 23.96 µs. The mean differences in monaural and interaural spectral content were 1.92 dB and 2.42 dB, respectively. It is concluded that the mesh is suitable for BEM simulations below 20 kHz, provided that just-noticeable perceptual differences are acceptable, and should prove useful in a variety of research applications.
Binaural audio research frequently employs head-related transfer functions (HRTFs). However, acoustic measure- ment of large numbers of HRTFs can be impractical. An alternative is boundary element method (BEM) simulation using 3D meshes. This paper describes the acoustic validation of a 3D mesh of KEMAR, previously validated against the manufacturer’s CAD file. Differences between acoustic and simulated binaural cues were analysed for consistency. After compensating for systematic errors, the mean difference in interaural time difference was 23.96 µs. The mean differences in monaural and interaural spectral content were 1.92 dB and 2.42 dB, respectively. It is concluded that the mesh is suitable for BEM simulations below 20 kHz, provided that just-noticeable perceptual differences are acceptable, and should prove useful in a variety of research applications.
Authors:
Young, Kat; Kearney, Gavin; Tew, Anthony I.
Affiliation:
University of York, York, UK
AES Conference:
2018 AES International Conference on Spatial Reproduction - Aesthetics and Science (July 2018)
Paper Number:
EB2-9
Publication Date:
July 30, 2018Import into BibTeX
Session Subject:
boundary element method; KEMAR; computational simulation; head-related transfer function
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=19662