Perceptual Evaluation Of A Multiband Acoustic Crosstalk Canceler Using A Linear Loudspeaker Array
Paper i proceeding, 2017

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.

beamforming

crosstalk cancellation

spatial sound

RACE

transaural sound

Författare

Christoph Hohnerlein

Technische Universität Berlin

Jens Ahrens

Chalmers, Bygg- och miljöteknik, Teknisk akustik

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

15206149 (ISSN)

96-100 7952125

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Kommunikationssystem

Signalbehandling

DOI

10.1109/ICASSP.2017.7952125

ISBN

978-1-5090-4117-6

Mer information

Senast uppdaterat

2018-03-01