faire_jour
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(From the web on hearing loss degrees)
26-40 dB Hearing Loss:
Greater listening difficulties than a “plugged-ear” hearing loss.
Child can “hear” but misses fragments of speech leading to misunderstandings.
At 30 dB hearing loss child can miss up to 25-40% of speech signal.
At 40 dB child may miss 50% of classroom discussions.
Often experiences difficulty learning early reading skills such as letter/sound associations
So why are you excepting such "awful" hearing above 500 hz? You are making my point!