Prescriptive rule choice hardly affects speech intelligibility outcomes

Evidence

Audiologists generally determine the amount of amplification provided by a hearing aid from the audiogram and a prescriptive rule. The amount of gain provided is generally somewhere between one-third and half of the hearing loss. A variety of prescriptive rules are available, but the specific prescriptive rule has been demonstrated to have little effect on speech intelligibility (Humes, 1991). — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1720

Categorization

Category: Contrarian or Surprising Claims

• QUESTION: If the specific rule barely matters for speech intelligibility, what outcomes DO the different rules differ on (comfort, loudness perception, long-term acclimatization)?

Related

• The choice of hearing aid prescriptive rule barely affects speech intelligibility. (similarity 0.94)
• The specific hearing-aid prescriptive fitting rule barely affects speech intelligibility (similarity 0.86)
• Natural-sounding speech can still be poorly intelligible (similarity 0.81)
• Improving speech intelligibility via noise reduction outweighs equivalent improvement of the target signal. (similarity 0.80)
• Linguistic context lets listeners understand speech at lower acoustic intelligibility (similarity 0.79)
• Hearing thresholds affect intelligibility uniformly while cognition acts situation-specifically (similarity 0.79)
• Hearing-impaired listeners need higher signal-to-noise ratios than normal hearers do (similarity 0.79)
• Pure level changes are rated as valuable as SNR changes despite not aiding intelligibility (similarity 0.79)
• Speech intelligibility saturates once the low-frequency target is attenuated 15 dB. (similarity 0.79)
• Very high speech levels can reduce word recognition scores. (similarity 0.79)
• Speech intelligibility and naturalness are distinct perceptual dimensions that do not track each other (similarity 0.79)
• Audiometric pure-tone thresholds predict speech intelligibility even after sensitivity adjustment (similarity 0.79)
• The range of SNRs contributing to speech intelligibility is wider than SII standards assume (similarity 0.79)
• Hearing thresholds correlate more strongly with speech intelligibility at low signal-to-noise ratios. (similarity 0.78)
• Speech-in-speech intelligibility depends on non-auditory factors beyond audibility alone (similarity 0.78)

Broader Connections

• The specific hearing-aid prescriptive fitting rule barely affects speech intelligibility #corroborates (1.00)
• Speech intelligibility and naturalness are distinct perceptual dimensions that do not track each other #expands (0.75) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2398
• Speech intelligibility saturates once the low-frequency target is attenuated 15 dB. #exemplifies (0.75)
• Natural-sounding speech can still be poorly intelligible #expands (0.75)