Realtime Compensation of Percieved Sound Source Direction for Bone-Conduction Headphones

Sounds perceived through bone-conduction stereo headphones incline toward the frontal center, comparing to the perceived direction through air-conduction stereo headphones. We previously developed a compensation method to address the above issue. This method compensates for the above difference in the form of streaming process. For this study, we implemented this method as a computer program with MATLAB and conducted a hearing experiment to evaluate its performance. It performed well in real time on a consumer-grade PC, and the shift in perceived sound direction was compensated. This is useful for the headphone amplifiers of bone-conduction headphones.