A few weeks ago I had the pleasure of sitting on Sea Cliff beach and
watching a favorite band set up the sound system before their concert. It was
fascinating for me to watch the sound engineers add a drop of bass here and a
bit of treble there till the musicians were pleased that the mix was just
right.
Shortly after that, I heard a captivating story on NPR, so interesting that
I am sharing the link here so you can hear it too. It is the story of a
pediatric audiologist, a long-time hearing aid user, who then lost her hearing
all together following a car accident. She went from being the provider of
hearing services to the recipient.
Hearing aids no longer helped her very profound hearing loss, and she had
surgery to obtain cochlear implants. Cochlear implants bypass the outer and
middle ear, and the electrode array stimulates the auditory nerve fibers from
within the cochlea. The device receives acoustic stimuli from the external
processor that's worn outside the ear. This new sound took some work to get
used to, even for a knowledgeable and seasoned audiologist.
As the research audiologist who worked with the patient explained, sometimes
there is too much sound, as the sound from the incoming frequencies may
"spread" and the sound may be blurry. In this case "more" stimulation could
actually be "less" hearing. To clean up the sounds for this patient, they
turned off a few of the electrodes, and suddenly the sound was perceived as
cleaner and easier to hear.
Please listen to this story – even if you don't know much about
cochlear implants I think you will find it interesting.
http://www.sciencefriday.com/videos/breakthrough-portraits-of-women-in-science-a-re-sounding-remedy/
And even if you do not have CI's or know anyone who does, remember that
sometimes a little tweaking will make a real difference in the comfort and
clarity of the sound quality. Hearing aids are works in progress as your brain
accommodates to sound, and as we make little tweaks as we go along.
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