Þýðing á "sch9" í íslenska

S.Ch.9 6. Series of channels (or filters) process sounds within bands of frequency. Depending on frequency, these channels vary in how wide (many frequencies) or narrow they are. Consequently, it is easier to detect differences between some frequencies than between others. When energy from multiple frequencies is present, lower-frequency energy makes it relatively more difficult to hear higher frequencies.

7. Hearing loss is caused by damage to the bones of the middle ear, to hair cells in the cochlea, to neurons in the auditory nerve, or to the stria vascularis that provides nourishment and ions to the hair cells. Although hearing aids are helpful to listeners with hearing impairment, there is only so much that can be done to help when damage to hair cells cannot be repaired.