Analysis of cross-talk cancellation of bilateral bone conduction stimulation

Wang, Jie; Chen, Yunda; Stenfelt, Stefan; Sang, Jinqiu; Li, Xiaodong; Zheng, Chengshi

doi:10.1016/j.heares.2023.108781

Cited by 5 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, low TA can improve the contralateral routing of sound for single-side deafness, as observed for two commercially available BC hearing aids 41 . Moreover, cross-head transmission is undesirable for binaural BC stimulation 42 and requires cancellation systems to improve the spatial perception of sound 43 . Assuming the small size of the BC implant and low energy demand, the stimulation on the OC should result in a high TA value, considering that merely shifting the stimulation site towards the cochlea increases the difference between vibration levels on the ipsilateral and contralateral sides 4 .…”

Section: Discussionmentioning

confidence: 99%

Directional sensitivity of bone conduction stimulation on the otic capsule in a finite element model of the human temporal bone

Borkowski

2024

Sci Rep

View full text Add to dashboard Cite

Sound transmission to the human inner ear by bone conduction pathway with an implant attached to the otic capsule is a specific case where the cochlear response depends on the direction of the stimulating force. A finite element model of the temporal bone with the inner ear, no middle and outer ear structures, and an immobilized stapes footplate was used to assess the directional sensitivity of the cochlea. A concentrated mass represented the bone conduction implant. The harmonic analysis included seventeen frequencies within the hearing range and a full range of excitation directions. Two assessment criteria included: (1) bone vibrations of the round window edge in the direction perpendicular to its surface and (2) the fluid volume displacement of the round window membrane. The direction of maximum bone vibration at the round window edge was perpendicular to the round window. The maximum fluid volume displacement direction was nearly perpendicular to the modiolus axis, almost tangent to the stapes footplate, and inclined slightly to the round window. The direction perpendicular to the stapes footplate resulted in small cochlear responses for both criteria. A key factor responsible for directional sensitivity was the small distance of the excitation point from the cochlea.

show abstract

Section: Discussionmentioning

confidence: 99%

Directional sensitivity of bone conduction stimulation on the otic capsule in a finite element model of the human temporal bone

Borkowski

2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…However, one argument against bilateral BC stimulation is that the sound from one stimulation position reaches both ears [17][18][19] . This suggests that it would be su cient to stimulate both cochleae from one position, and that binaural cues are impeded due to cross hearing 20,21 . A recent study on bilateral BC stimulation found that the average low-frequency interaural time delay (at 500 Hz) was 0.2 ms and the level difference was close to 10 dB 22 .…”

Section: Introductionmentioning

confidence: 99%

Evaluating binaural hearing capabilities in individuals with sensorineural hearing loss through bilateral bone conduction stimulation

Stenfelt,

Zeitooni,

Mäki-Torkko

2023

Preprint

Self Cite

View full text Add to dashboard Cite

This study investigated the impact of bilateral bone conduction (BC) stimulation and sensorineural hearing loss on spatial release from masking, binaural intelligibility level difference, and lateralization. The study involved two groups of adults with mild to moderate sensorineural hearing loss: one group of 21 participants with symmetric hearing loss and another group of nine participants with asymmetric hearing loss. All tests were conducted through BC and air conduction (AC) headsets with non-individualized virtual positions of the sound sources and linear amplification based on individual hearing thresholds. The findings revealed a bilateral benefit for both groups of hearing-impaired individuals, with symmetric hearing loss yielding better results than asymmetric hearing loss. AC stimulation provided approximately twice the benefit in terms of dB compared to BC stimulation. A large part of this benefit originated from a favorable signal-to-noise ratio due to noise reduction from the head shadow. However, binaural processing was present in both hearing-impaired groups with bilateral BC stimulation. The ability to lateralize sounds based on interaural time delays was significantly impaired in participants with both types of hearing loss when stimulation was by BC. Despite these challenges, the study underscores the benefits of bilateral fitting of BC hearing aids, even in individuals with mild to moderate sensorineural hearing loss, whether symmetric or asymmetric.

show abstract

Inter-aural separation during hearing by bilateral bone conduction stimulation

Surendran

Stenfelt

2023

Hearing Research

View full text Add to dashboard Cite

Analysis of cross-talk cancellation of bilateral bone conduction stimulation

Cited by 5 publications

References 50 publications

Directional sensitivity of bone conduction stimulation on the otic capsule in a finite element model of the human temporal bone

Directional sensitivity of bone conduction stimulation on the otic capsule in a finite element model of the human temporal bone

Evaluating binaural hearing capabilities in individuals with sensorineural hearing loss through bilateral bone conduction stimulation

Inter-aural separation during hearing by bilateral bone conduction stimulation

Contact Info

Product

Resources

About