Cochlear frequency selectivity decreases as sound level increases

Evidence

On the other hand, however, Baer and Moore observed very large effects of reduced frequency selectivity for that same speech signal presented in noise. In this case, poor frequency selectivity of the impaired ear increases the susceptibility to masking by other sounds. The poor frequency selectivity of the impaired ear has also been linked to poor abilities to understand speech in noise for people with SNHL (e.g., Dubno, Dirks, & Morgan, 1984). Upward spread of masking can also be problematic, particularly in amplified situations. The low-frequency components of a noise may mask higher frequencies. Such upward spread of masking can also complicate fitting hearing aids for listeners with low-frequency hearing loss, as gain in the low frequencies can lead to upward spread of masking into regions of good hearing. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1698 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Frequency selectivity in normal-hearing listeners worsens at high sound levels — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1698; Frequency selectivity is the auditory system’s ability to represent one frequency independently of another. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 461; The ear’s frequency response is level-dependent, favoring mid frequencies at low volume

Related

• Frequency selectivity in normal-hearing listeners worsens at high sound levels (similarity 0.95)
• Hearing loss impairs frequency selectivity beyond what stimulus level differences explain. (similarity 0.89)
• Poor frequency selectivity causes speech-in-noise difficulty and complicates hearing aid fitting (similarity 0.88)
• The ear’s frequency selectivity is imperfect and worsens at higher frequencies (similarity 0.88)
• Low-frequency maskers mask high-frequency signals more than the reverse, and this worsens with intensity. (similarity 0.88)
• The ear’s frequency response is level-dependent, favoring mid frequencies at low volume (similarity 0.88)
• Frequency selectivity is the auditory system’s ability to represent one frequency independently of another. (similarity 0.87)
• Reduced frequency selectivity hurts speech perception less than reduced audibility does (similarity 0.87)
• Wider peripheral tuning from hearing loss suppresses low-frequency fluctuation amplitude (similarity 0.86)
• Impaired frequency selectivity, suppression, and fluctuation use jointly degrade hearing (similarity 0.86)
• Impaired frequency selectivity and lost suppression increase masking and reduce spectral contrasts (similarity 0.86)
• Reduced frequency selectivity partly explains diminished sensitivity to inherent masker fluctuations (similarity 0.86)
• The ear’s frequency selectivity worsens as frequency rises above 500 Hz. (similarity 0.85)
• Presbyacusis shows frequency-dependent recruitment strongest at high frequencies (similarity 0.85)
• Masking experiments revealed the auditory filter underlying frequency selectivity (similarity 0.85)

Broader Connections

• Frequency selectivity in normal-hearing listeners worsens at high sound levels #corroborates (1.00) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1698