Binaural audio rendering is a technique used to create immersive sound experiences by simulating the way humans perceive spatial audio. Typically performed using headphones, binaural reproduction is widely applied in virtual reality, gaming, and 3D audio experiences, enhancing realism and engagement. However, headphones may not always be convenient, leading to the use of loudspeakers for binaural playback. In a loudspeaker setup, the crosstalk effect occurs when audio intended for one ear is heard by the other, distorting spatial perception. To address this, crosstalk cancellation algorithms are applied to ensure accurate binaural audio delivery. One promising application is binaural audio headrest systems for vehicles, enhancing audio experiences during travels. This paper aims to examine the impact of loudspeaker positioning in this system, considering the application of a crosstalk cancellation algorithm and evaluating placement and configuration of loudspeakers that are also critical for an effective cancellation. Subjective and objective analyses have demonstrated that crosstalk cancellation is necessary to improve the quality of a binaural audio headrest that probably will represent the listening space of the future.
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https://aes2.org/publications/elibrary-page/?id=22955
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