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

作　　者：XIA Risheng LI Junfeng XU Chundong YAN Yonghong 

机构地区：[1]Key Laboratory of Speech Acoustics and Content Understanding,Institute of Acoustics,Chinese Academy of Sciences [2]School of Information and Electronics,Beijing Institute of Technology

出　　处：《Chinese Journal of Electronics》2014年第3期527-532,共6页电子学报（英文版）

基　　金：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);the CAS Priority Deployment Project(No.KGZD-EW-103-2)

摘　　要：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.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 ab- sorption, 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.

关 键 词：Binaural room impulse response  Head- related impulse response Sound image externalizations Headphone reproduction Real-life listening. 

分 类 号：TN642[电子电信—电路与系统]