lovezebras
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- May 26, 2006
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dunno how much they were they ended up being covered for me
venting Advantages:
Reduce unnecessary low frequency gain and output
Allow unamplified sound to enter the ear canal
Reduce occlusion effect
Relieve the feeling of pressure in the ear
Reduce moisture build-up in the ear canal.
Venting Disadvantages:
Too much venting can combine with the ear canal cavity to produce a Helmholtz resonator effect (increased gain in the 250-1000 Hz region), resulting in an echo or barrel effect when the patient speaks.
Feedback. As vent size increases, acoustic leakage increases, and therefore the probability of feedback increases.
venting Advantages:
Reduce unnecessary low frequency gain and output
Allow unamplified sound to enter the ear canal
Reduce occlusion effect
Relieve the feeling of pressure in the ear
Reduce moisture build-up in the ear canal.
Venting Disadvantages:
Too much venting can combine with the ear canal cavity to produce a Helmholtz resonator effect (increased gain in the 250-1000 Hz region), resulting in an echo or barrel effect when the patient speaks.
Feedback. As vent size increases, acoustic leakage increases, and therefore the probability of feedback increases.