Robust Virtual Sound Reproduction Using Acoustic Contrast Control
Zhu Qiaox · Audio Engineering · 2015
Reproducing binaural signals by loudspeakers has been widely applied to simulate an auditory virtual environment where the listener perceives an acoustic source located at a position without any physical source. However,conventional crosstalk cancellation used by binaural signals reproduction lacks robustness with respect to listener 's position and head movements. In this paper,a robust binaural signals reproduction method based on acoustic contrast control( ACC) is proposed. The simulation results show that this method proposed is capable of constructing a broad listening zone in the sound field. When listener's head moves inside the listening zone,eardrum sound pressure level difference between left ear and right ear can be maintained more than 10 d B while reproducing monaural signal. Thus,it is proved that the proposed method can achieve enough channel separation and crosstalk suppression,enhance system robustness to the variation of head position as well.