Bone-anchored hearing aids bypass outer and middle ear entirely

Evidence

Pathological earS show tuning curves that may differ from those produced by normally hearing subjects. To make this comparison possible, the tuning curve of normally hearing subjects is also indicated in the data of listeners with pathological hearing. The first example is of a group with conductive hearing loss (Fig. 16.22). It can be clearly seen, by comparing the tuning curves of normally hearing suhjects with those produced by listeners with conductive hearing loss, that in the latter case the whole tuning curve is shifted upwards by ahout 30 dB. These 30 dB correspond to the hearing loss. This means that although there exists a hearing loss of 30 dB, the frequency resolution outlined in the psychoacoustical tuning curve does not change for the group with conductive hearing loss. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884 (#complicates, via linked claim)

Categorization

• XREF: connects to: Bone conduction isolates cochlear function from outer and middle ear disorders; Outer and middle ear structures provide frequency-specific amplification of incoming sound — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 212; Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884 (+1 more)

Related

• Bone conduction isolates cochlear function from outer and middle ear disorders (similarity 0.96)
• Bone versus air conduction plots distinguish outer-ear from inner-ear hearing loss (similarity 0.85)
• Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. (similarity 0.82)
• Conductive losses act as filters but sensorineural losses add distortions beyond attenuation. (similarity 0.80)
• Outer and middle ear structures provide frequency-specific amplification of incoming sound (similarity 0.80)
• Bone-conduction audiometry bypasses outer and middle ear to directly assess inner ear function. (similarity 0.80)
• Comparing bone- and air-conduction thresholds distinguishes conductive from sensorineural hearing loss (similarity 0.79)
• Hearing aids restore loudness sensitivity but cannot restore damaged frequency selectivity. (similarity 0.79)
• Hearing loss varies independently across different frequency ranges (similarity 0.79)
• Frequency-specific hearing loss drives multi-band hearing aid processing (similarity 0.79)
• Outer-hair-cell damage destroys the cochlea’s compressive nonlinearity, which hearing aids try to rebuild. (similarity 0.79)
• The middle ear both transmits sound and protects against loud noise (similarity 0.78)

Broader Connections

• Bone conduction isolates cochlear function from outer and middle ear disorders #corroborates (0.95)
• A hearing aid can compensate for conductive air-conduction hearing loss #expands (0.80)
• Outer and middle ear structures provide frequency-specific amplification of incoming sound #complicates (0.75) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 212
• Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. #complicates (0.75) — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884