Monday, September 15, 2008

CI Semantics

Oh, the world of techo-lingo abounds with cochlear implants. Words and acronyms, such as threshold, compression, spectral channels, RF, NRI, AGR, IDR, HiRes -P, HiRes -S . . . . what does it all mean? Well, the bottom line for me is this: if my audiologist works her magic on the computer and I hear better as a result, I'm a happy camper.

At my 6th mapping session today, I asked for a wider IDR for my last program slot, position #3. The letters IDR stand for Input dynamic range. The "standard" IDR default setting is 60, I think, and the maximum on my new Harmony is 80. This is the widest in the CI industry and a unique feature of the Harmony processor.

So what, you ask? The bigger the number, the bigger the sound window. That means that my world of sound has now expanded outward if I switch to slot #3. A wider IDR is designed to allow me to hear more loud vs. soft and near vs. far away sounds.

What have I noticed so far?

  • fuller, louder choir at church on Sunday. WONDEFUL!!

  • easier to hear a book-on-tape through the car speakers - the voice seems to "come through" better somehow

  • clearer sound on the TV - I catch more words without looking at the screen

  • hearing some soft electronic buzzing when close to the TV and when walking through the monitor thing-y at the drugstore entrance. I remember having this annoyingly loud with my digital hearing aids but not with my CI.

I've heard other CIers with Advanced Bionics refer to this IDR setting as their "music program" since softer softs and louder louds makes quite a difference for music buffs. After just one week, I think I like it as my daily setting. I may prefer to switch to program #1 in a noisy restaurant, but I haven't been out to eat yet. Humm . . . excuse me . . . "Gerry, . . . ."

1 comment:

Denise Portis said...

Grin! Yes, Gerry, do take Sheila out to eat!