Broadband gain fails to compensate for non-flat hearing-loss audiograms

Evidence

Gallun et al. ( 2013 ) found that the effect of hearing loss on separated thresholds was stronger when one target level was used for all listeners (50 dB SPL) compared to when a sensation level (SL) of 40 dB was used (equivalent to a range of 47–72 dB SPL). They speculated that a broadband increase in gain was not sufficient to combat the non-flat hearing losses of their subjects. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1721

Categorization

Category: Causal Relationships

• XREF: Connects to audiology clinic practice where a single gain setting is often used; also relates to how hearing aids with flat gain fail users with sloping loss.

Related

• Vintage hi-fi loudness buttons compensated imperfectly for low-level hearing loss (similarity 0.88)
• Standard hearing-aid gain prescriptions may under-amplify high frequencies at low presentation levels. (similarity 0.86)
• Flat-gain amplification fails for frequency-dependent hearing losses (similarity 0.86)
• Frequency-specific hearing loss drives multi-band hearing aid processing (similarity 0.83)
• Hearing aid gain is capped by loudness discomfort before full audibility restoration is achieved. (similarity 0.83)
• Fixed presentation levels overestimate hearing-loss effects that sensation-level compensation removes (similarity 0.83)
• Simulated hearing loss isolates audibility from other hearing-loss effects (similarity 0.83)
• Most of the SRM deficit in hearing-impaired listeners stems from reduced audibility (similarity 0.82)
• Amplification only compensates for elevated thresholds, not other perceptual deficits from hearing loss. (similarity 0.82)
• Hearing loss varies independently across different frequency ranges (similarity 0.82)
• Differential metrics can separate cochlear gain loss from temporal coding deficits in hearing loss (similarity 0.82)
• Hearing aids restore loudness sensitivity but cannot restore damaged frequency selectivity. (similarity 0.81)
• Bilateral hearing aids use reduced gain due to loudness summation (similarity 0.81)
• Hearing-impaired listeners gain far less from noise gaps than normal listeners (similarity 0.80)
• Cochlear gain loss can compensate for neural coding deficits (similarity 0.80)

Broader Connections

• Flat-gain amplification fails for frequency-dependent hearing losses #corroborates (0.95)