Related Experiment Video
Updated: Sep 25, 2025
04:32
Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
Published on: December 20, 2024
449
Effects of Stimulation Position and Frequency Band on Auditory Spatial Perception with Bilateral Bone Conduction
Jie Wang1, Xikun Lu1, Jinqiu Sang2,3
1School of Electronics and Communication Engineering, Guangzhou University, Guangzhou, China.
Trends in Hearing
|May 2, 2022
Summary
Bone-conduction (BC) stimulation at the mastoid and condyle improves sound localization accuracy, especially with high-frequency sounds. This method effectively conveys spatial information, comparable to traditional air-conduction headphones.
Area of Science:
- Audiology
- Bioacoustics
- Neuroscience
Background:
- Bone-conduction (BC) hearing aids offer an alternative for individuals with conductive hearing loss.
- Understanding the spatial perception capabilities of BC stimulation is crucial for optimizing hearing device performance.
Purpose of the Study:
- To investigate the impact of different BC stimulation positions and frequency bands on horizontal sound localization accuracy.
- To compare BC localization performance with traditional air-conduction (AC) methods.
Main Methods:
- Virtual sound environments were created using non-individualized head-related transfer functions.
- Bilateral BC transducers were used for sound reproduction at various stimulation sites (mastoid, condyle, supra-auricular, temple, bone-anchored hearing aid implant).
- Localization accuracy and front-back confusion (FBC) were assessed, along with transcranial attenuation (TA).
Main Results:
- Mastoid stimulation yielded the best localization performance; temple stimulation performed the worst.
- Localization accuracy with mastoid and condyle BC stimulation was comparable to AC headphones.
- High-frequency BC stimulation significantly improved localization accuracy compared to low-frequency stimulation.
- Larger transcranial attenuation was observed at the mastoid and condyle, and at higher frequencies.
Conclusions:
- BC stimulation at the mastoid and condyle effectively conveys spatial information, particularly with high-frequency sounds.
- While larger transcranial attenuation may enhance localization accuracy, it does not reduce front-back confusion.
- BC stimulation at specific sites offers a viable method for spatial sound perception.
Keywords:
auditory spatial perceptionbone conductionfront-back confusiontranscranial attenuationvirtual sound localizationMore Related Videos
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