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the claim
Bone conduction makes internal sounds seem louder when ears are plugged
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
3 sources for · 0 against

Evidence consistently shows that bone-conduction creates an increased loudness perception of internal sounds (such as one's own voice) when the ear canal is plugged or occluded, a phenomenon well-documented in audiology as the occlusion effect.

Evidence for · 3
Open Versus Closed Hearing-Aid Fittings: A Literature Review of Both Fitting Approaches.
2016 · cited by 34
Discusses the occlusion effect, where plugging or closing the ear canal causes an abnormal perception of the user's own voice as too loud.
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The analysis

Papers [1], [2], and [6] directly discuss the occlusion effect, detailing how bone-conducted sounds (like internal vocalizations) become noticeably louder when the ear canal is blocked or plugged. No papers refute this well-established auditory phenomenon.

More for · 2
Challenges and recent developments in hearing aids. Part II. Feedback and occlusion effect reduction strategies, laser shell manufacturing processes, and other signal processing technologies.
2004 · cited by 33
Examines feedback and occlusion effect reduction strategies in hearing aids, noting how ear canal occlusion alters sound perception.
On the removal of the open earcanal high-pass filter effect due to its occlusion: A bone-conduction occlusion effect theory
2021 · cited by 9
Explains the occlusion effect as an increased loudness sensation of bone-conducted low-frequency sounds when the ear canal is occluded.
Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. The effect of altered auditory feedback on control of vocal production in budgerigars (Melopsittacus undulatus).peer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. Open Versus Closed Hearing-Aid Fittings: A Literature Review of Both Fitting Approaches.peer-reviewedsupports
  3. Challenges and recent developments in hearing aids. Part II. Feedback and occlusion effect reduction strategies, laser shell manufacturing processes, and other signal processing technologies.peer-reviewedsupports
  4. Improving Accuracy and Reliability of Hearing Tests: An Exploration of International Standards.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Probe microphone measurements: 20 years of progress.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Soft Tissue Conduction: Review, Mechanisms, and Implications.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. On the removal of the open earcanal high-pass filter effect due to its occlusion: A bone-conduction occlusion effect theorypeer-reviewedsupports
  8. Characterization and Clinical Use of Bone Conduction Transducers at Extended High Frequencies.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Management of Acquired Cholesteatoma Associated With Patulous Eustachian Tube and Habitual Sniffing.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Quantitative three-dimensional image analysis of the superior canal after surgical plugging to treat superior semicircular canal dehiscence.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Bone-conduction threshold and air-bone gap may predict frequency-specific air-conduction threshold after tympanoplastypeer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Perceived Sound Quality of Hearing Aids With Varying Placements of Microphone and Receiver.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → SUPPORTED · 8505 Aug 2026
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