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The individualization of head-related transfer functions (HRTFs) leads to perceptually enhanced virtual environments. Particularly the peak-notch structure in HRTF spectra depending on the listener’s specific head and pinna anthropometry contains crucial auditive cues, e.g., for the perception of sound source elevation. Inspired by the eigen-faces approach, we have decomposed image representations of individual full spherical HRTF data sets into linear combinations of orthogonal eigen-images by principle component analysis (PCA). Those eigen-images reveal regions of inter-subject variability across sets of HRTFs depending on direction and frequency. Results show common features as well as spectral variation within the individual HRTFs. Moreover, we can statistically de-noise the measured HRTFs using dimensionality reduction.
Author (s): Hold, Christoph; Seipel, Fabian; Brinkmann, Fabian; Lykartsis, Athanasios; Weinzierl, Stefan
Affiliation:
Technische Universität Berlin, Berlin, Germany; TU Berlin, Berlin, Germany; Audio Communication Group, Technical University Berlin, Berlin, Germany; Technical University of Berlin, Berlin, Germany
(See document for exact affiliation information.)
AES Convention: 143
Paper Number:9891
Publication Date:
2017-10-06
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Session subject:
Spatial Audio—Part 2
Permalink: https://aes2.org/publications/elibrary-page/?id=19288
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Hold, Christoph; Seipel, Fabian; Brinkmann, Fabian; Lykartsis, Athanasios; Weinzierl, Stefan; 2017; Eigen-Images of Head-Related Transfer Functions [PDF]; Technische Universität Berlin, Berlin, Germany; TU Berlin, Berlin, Germany; Audio Communication Group, Technical University Berlin, Berlin, Germany; Technical University of Berlin, Berlin, Germany; Paper 9891; Available from: https://aes2.org/publications/elibrary-page/?id=19288
Hold, Christoph; Seipel, Fabian; Brinkmann, Fabian; Lykartsis, Athanasios; Weinzierl, Stefan; Eigen-Images of Head-Related Transfer Functions [PDF]; Technische Universität Berlin, Berlin, Germany; TU Berlin, Berlin, Germany; Audio Communication Group, Technical University Berlin, Berlin, Germany; Technical University of Berlin, Berlin, Germany; Paper 9891; 2017 Available: https://aes2.org/publications/elibrary-page/?id=19288
@article{hold2017eigen-images,
author={hold christoph and seipel fabian and brinkmann fabian and lykartsis athanasios and weinzierl stefan},
journal={journal of the audio engineering society},
title={eigen-images of head-related transfer functions},
year={2017},
number={9891},
month={october},}