Externalization of Virtual Sound Sources With Bone and Air Conduction Stimulation.

IF 3 2区 医学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-09-17 DOI:10.1177/23312165251378355
Jie Wang, Huanyong Zheng, Stefan Stenfelt, Qiongyao Qu, Jinqiu Sang, Chengshi Zheng
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Abstract

Current research on sound source externalization primarily focuses on air conduction (AC). As bone conduction (BC) technology advances and BC headphones become more common, the perception of externalization for BC-generated virtual sound sources has emerged as an area of significant interest. However, there remains a shortage of relevant research in this domain. The current study investigates the impact of reverberant sound components on the perception of externalization for BC virtual sound sources, both with the ear open (BC-open) and with the ear canals occluded (BC-blocked). To modify the reverberant components of the Binaural Room Impulse Responses (BRIRs), the BRIRs were either truncated or had their reverberation energy scaled. The experimental findings suggest that the perception of externalization does not significantly differ across the three stimulation modalities: AC, BC-open, and BC-blocked. Across both AC and BC transmission modes, the perception of externalization for virtual sound sources was primarily influenced by the reverberation present in the contralateral ear. The results were consistent between the BC-open and BC-blocked conditions, indicating that air radiated sounds from the BC transducer did not impact the results. Regression analyses indicated that under AC stimulation, sound source externalization ratings exhibited strong linear relationships with the Direct-to-Reverberant Energy Ratio (DRR), Frequency-to-Frequency Variability (FFV), and Interaural Coherence (IC). The results suggests that BC transducers provide a similar degree of sound source externalization as AC headphones.

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骨和空气传导刺激的虚拟声源外化。
目前对声源外化的研究主要集中在空气传导方面。随着骨传导(BC)技术的进步和BC耳机的普及,对BC生成的虚拟声源的外化感知已经成为一个重要的兴趣领域。然而,这一领域的相关研究还很缺乏。目前的研究调查了混响声成分对BC虚拟声源外化感知的影响,包括耳朵打开(BC-打开)和耳道阻塞(BC-阻塞)。为了改变双耳房间脉冲响应(brir)的混响分量,对brir进行截断或对其混响能量进行缩放。实验结果表明,外化知觉在三种刺激模式(交流、bc -开放和bc -阻断)之间没有显著差异。在交流和BC传输模式中,对虚拟声源的外化感知主要受到对侧耳存在的混响的影响。BC-打开和BC-阻塞条件下的结果是一致的,这表明来自BC换能器的空气辐射声音不会影响结果。回归分析表明,在交流刺激下,声源外化等级与直接-混响能量比(DRR)、频频变异性(FFV)和耳间相干性(IC)呈强线性关系。结果表明,BC换能器提供的声源外化程度与交流耳机相似。
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来源期刊
Trends in Hearing
Trends in Hearing AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGYOTORH-OTORHINOLARYNGOLOGY
CiteScore
4.50
自引率
11.10%
发文量
44
审稿时长
12 weeks
期刊介绍: Trends in Hearing is an open access journal completely dedicated to publishing original research and reviews focusing on human hearing, hearing loss, hearing aids, auditory implants, and aural rehabilitation. Under its former name, Trends in Amplification, the journal established itself as a forum for concise explorations of all areas of translational hearing research by leaders in the field. Trends in Hearing has now expanded its focus to include original research articles, with the goal of becoming the premier venue for research related to human hearing and hearing loss.
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