The binaural auralization of a 3D sound field using spherical‐harmonics beamforming (SHB) techniques was investigated and compared with the traditional method using a dummy head. The new procedure was verified by comparing simulated room impulse responses with directly measured ones both monaurally and binaurally. The objective comparisons show that there is good agreement in the frequency range between 0.1 to 6.4 kHz. Psychoacoustic attributes of multi‐channel reproduced sounds were measured in a listening experiment to validate the method subjectively. The results show that subjective ratings of the width, spaciousness and preference of different audio reproduction modes auralized based on SHB were not significantly different from those obtained for dummy head measurements. Thus binaural synthesis using SHB may be a useful tool to reproduce a 3D sound field binaurally while saving considerably on measurement time because head rotation can be simulated based on a single recording.
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May 2008
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May 01 2008
Binaural auralization based on spherical‐harmonics beamforming
Wookeun Song;
Wookeun Song
Brüel & Kjær Sound & Vibration Measurement A/S, Skodsborgvej 307, DK‐2850 Nærum, Denmark, [email protected]
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Wolfgang Ellermeier;
Wolfgang Ellermeier
Institut für Psychologie, Technische Universität Darmstadt, Alexanderstraße 10, D‐64283 Darmstadt, Germany, [email protected]‐darmstadt.de
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Jo/rgen Hald
Jo/rgen Hald
Brüel & Kjær Sound & Vibration Measurement A/S, Skodsborgvej 307, DK‐2850 Nærum, Denmark, [email protected]
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Wookeun Song
Wolfgang Ellermeier
Jo/rgen Hald
Brüel & Kjær Sound & Vibration Measurement A/S, Skodsborgvej 307, DK‐2850 Nærum, Denmark, [email protected]
J. Acoust. Soc. Am. 123, 3159 (2008)
Citation
Wookeun Song, Wolfgang Ellermeier, Jo/rgen Hald; Binaural auralization based on spherical‐harmonics beamforming. J. Acoust. Soc. Am. 1 May 2008; 123 (5_Supplement): 3159. https://doi.org/10.1121/1.2933195
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