XIA Risheng, LI Junfeng, XU Chundong, YAN Yonghong. A Sound Image Externalization Approach for Headphone Reproduction by Simulating Binaural Room Impulse Responses[J]. Chinese Journal of Electronics, 2014, 23(3): 527-532.
Citation: XIA Risheng, LI Junfeng, XU Chundong, YAN Yonghong. A Sound Image Externalization Approach for Headphone Reproduction by Simulating Binaural Room Impulse Responses[J]. Chinese Journal of Electronics, 2014, 23(3): 527-532.

A Sound Image Externalization Approach for Headphone Reproduction by Simulating Binaural Room Impulse Responses

Funds:  This work is supported by the National Natural Science Foundation of China (No.10925419, No.90920302, No.61072124, No.11074275, No.11161140319, No.91120001, No.61271426), the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDA06030100, No.XDA06030500), the National 863 Program (No.2012AA012503) and the CAS Priority Deployment Project (No.KGZD-EW-103-2).
  • Received Date: 2013-03-01
  • Rev Recd Date: 2013-04-01
  • Publish Date: 2014-07-05
  • In this paper, an improved sound image externalization approach is proposed by considering the essential differences between headphone listening and reallife listening to deal with the problem of in-head localization of sound images. Through simulating the virtual sound source in a given enclosure, the proposed externalization approach renders sound images out-of-head by exploiting a Binaural room impulse response (BRIR) simulation approach, which consists of a new hybrid approach for the acoustic Room impulse response (RIR) and the Head-related impulse responses (HRIRs). The hybrid RIR simulation approach comprises an improved image-source model for the early reflections by integrating the air absorption, and a Feedback delay network (FDN) for the late reflections. Moreover, the HRIRs are further integrated into each sound image in the early reflections to imitate the effect of listener. Psychoacoustic test results demonstrated that the proposed externalization algorithm offered significant out-of-head perception and more natural quality of sound images.
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