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Perceptual evaluation of a multiband acoustic crosstalk canceler using a linear loudspeaker array | IEEE Conference Publication | IEEE Xplore

Perceptual evaluation of a multiband acoustic crosstalk canceler using a linear loudspeaker array


Abstract:

We propose and evaluate an acoustic crosstalk canceler for binaural sound presentation based on an 8-channel linear loudspeaker array. The system uses traditional LSFI be...Show More

Abstract:

We propose and evaluate an acoustic crosstalk canceler for binaural sound presentation based on an 8-channel linear loudspeaker array. The system uses traditional LSFI beamforming and path estimation in the mid and low frequency range, respectively. Simulations show a channel separation of around 40 dB over the vast part of the considered frequency range. The channel separation in a real-world implementation was measured to be 10 dB – 25 dB over a broadband spectrum of 250 Hz – 9000 Hz. When comparing localization precision of virtual binaural signals to ground-truth presentation with headphones, a 21 subject study revealed significantly higher localization precision (F(1) = 23.56; p < 0.001) when discounting front-back confusions, which in turn occurred significantly more often for most participants. Perceptually, externalization was rated significantly higher (t(20) = 3.983; p > 0.001); task difficulty, timbre and spaciousness where rated the same accross both presentation methods. Robustness of the method was high and no fixation of the subjects' heads was applied.
Date of Conference: 05-09 March 2017
Date Added to IEEE Xplore: 19 June 2017
ISBN Information:
Electronic ISSN: 2379-190X
Conference Location: New Orleans, LA, USA

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