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occlusion effect

4.49  occlusion effect. Increase in loudness of conductive signals, usually at frequencies below 2000 Hz, when the external ear(s) are covered. Typically observed in bone-conduction audiometry as an improvement in threshold when an ear is covered with an earphone (occluded) or an external ear is occluded compared with an ear being uncovered (unoccluded).

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  • Term: external ear
  • Term: audiometry
  • Term: earphone
  • Term: loudness
  • Term: ear

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