When speech is already clear, further SNR improvement does not motivate clinic attendance

Evidence

For the + 6 dB SNR reference condition, mean responses never significantly exceeded chance; furthermore, the function appears asymptotic, so the responses may not have exceeded chance regardless of the change in SNR. If the SNR is already relatively high enough to be clear, then making it clearer still does not appear to induce intervention-seeking behaviour. The JMD derived from clinical significance is the same as the JMD derived from the swap task: at least 6 dB SNR. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5711

Categorization

Category: Causal Relationships

• XREF: This ceiling effect parallels the ease condition in the swap task (5702), suggesting a general principle: benefit valuation depends on the starting difficulty.
• SHARE: Terrific nerdy fact for an audiologist colleague about the 6 dB JMD and the asymptotic no-benefit ceiling in good SNR.

Related

• A 3 dB detectable SNR change is far too small to motivate intervention-seeking behavior (similarity 0.91)
• Making already-clear speech clearer does not motivate people to seek help (similarity 0.91)
• Once speech is already clear, further clarity does not motivate clinic visits (similarity 0.89)
• Improving an already-clear SNR does not motivate people to seek hearing treatment (similarity 0.88)
• SNR must rise at least 3 dB before listeners tolerate one more conversation (similarity 0.82)
• Hearing-aid benefit studies lack an agreed threshold for meaningful SNR improvement (similarity 0.81)
• A minimum 6 dB SNR change is needed to motivate people to seek intervention (similarity 0.81)
• Meaningful speech-in-noise benefit requires double the detectable SNR change (similarity 0.80)
• The just noticeable difference in signal-to-noise ratio for speech is about 3 dB (similarity 0.80)
• Improving the SNR by reducing noise helps speech more than raising the target. (similarity 0.80)
• A 1 dB SNR improvement raises speech intelligibility by 7 to 19 percent. (similarity 0.80)
• Hearing aid SNR improvements fall below the just-noticeable threshold for speech understanding (similarity 0.80)
• Speech-in-noise clarity thresholds worsen at positive reference signal-to-noise ratios (similarity 0.80)
• Listener ratings of speech benefit only become significant once SNR change reaches 4 dB (similarity 0.80)
• A psychophysical JND in signal-to-noise ratio does not guarantee subjectively meaningful benefit to patients (similarity 0.79)

Broader Connections

• A meaningful speech-in-noise benefit requires at least 6 dB of SNR improvement #qualifies (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 5669
• Very high SNRs can reduce rather than improve word recognition accuracy #corroborates (0.80) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3584