CI-activation log no. 6 – day 8 – new test and weird sensations

Time for my first self-assessment test one week after the initial activation and only 5 days after completing the primary adjustments. The change is remarkable when I think about it…
No sounds made sense that first day, and they made just as little sense on day 4, but then the brain kicked into gear and started sorting out the sounds. A very interesting journey has begun, and I’m noticing daily changes. More on that later.

I have noticed some strange sensations when I turn off my CI. It’s like ghost-sounds, and they are a mixture of different sounds. The most noticeable one sounds like howling wind, but very steady in strength and tone. The other ghost-sound is more subtle but more disturbing, since it varies. Remember the old radios with Medium Wave frequency band? It was possible to pick up signals from boats or whatever from quite far away (I’m not a radio-expert :-)   ). And while turning the frequency tuner you would get this sound like it was jumping over a lot of frequencies really fast, picking up all sorts of chatter, Morse code and static noise. This second ghost noise sounds exactly like that! With that sound in my head I feel very electronic!

It’s so clear to me that I really wonder whether I’ve become a human antenna or not! Does anybody know what frequency the HIRes90K-implant operate on, and how weak signals it is capable of picking up? Could it possibly be that I hear radio-signals, or is it just my brain’s synapses that are creating new information highways and I’m picking up on the sounds from the road work?

Today I ran the test with the same settings on all equipment as on the previous test. The self test conducted on 09.09.09 has the exact same programming on my AB-processor as on today’s test.

What do I read from the test? Well, what really stands out is that the very low frequencies from 30 to 125 Hz have dropped. Also the mid-range frequency has dropped a little.

What does that mean? Well, I don’t need so much of the lowest frequencies, and also we found out during my initial sound-adjustment that these frequencies were interfering with other frequencies because they became distorted. And the distorted sounds were nauseating and louder than everything else…

That these frequencies are being ignored or less easily detected is a good thing, my brain is adjusting. And as for the medium frequency range between 375 and 1 KHz, that is where most of the human voice is, and what I need the most; those being reduced is also a good thing, because at a later mapping (or frequency adjustment) we can enhance just those frequencies.

During the initial CI-mapping my audio physicist recommended that I reduce both the bass and the high pitch, in order to enable my brain to be able to focus harder on the medium-range. (hope I remember everything correctly here!) +3 is a very small difference, it is the smallest possible difference in the sound-test that i use. 

I have two mysteries: the 125 Hz and the 2 kHz frequencies.

Date of test: 16.09.2009

(The minus indicates a weaker sound, meaning that the bigger the minus, the better my ability to hear that frequency is. The difference is indicated likewise, where the numbers in red plus is me needing a stronger sound in order to detect it. Essentially: the more minus the better result, and plus is worse.)

Program 1. (weaker low pitch, weaker high pitch, 120)

Freq. 30 Hz 45 Hz 60 Hz 90Hz 125 Hz 187 Hz 250 Hz 375 Hz 500 Hz 750 Hz 1 kHz 1,5kHz 2 kHz 3 kHz 4 kHz 6 kHz 8 kHz 12kHz 16kHz
16.09.09 -27 -33 -30 -27 -6 -60 -75 -78 -81 -87 -84 -78 -84 -87 -84 -78 -72 -27 -30
Change +3 +6 +9 +9 +18 0 -6 +3 +6 +3 +3 0 -12 0 0 0 0 0 0
09.09.09 -30 -39 -39 -36 -24 -60 -69 -81 -87 -90 -87 -78 -72 -87 -84 -78 -72 -27 -30

Program 2. (Same as program 1, 16 electrodes)

Freq. 30 Hz 45 Hz 60 Hz 90Hz 125 Hz 187 Hz 250 Hz 375 Hz 500 Hz 750 Hz 1 kHz 1,5kHz 2 kHz 3 kHz 4 kHz 6 kHz 8 kHz 12kHz 16kHz
16.09.09 0 0 0 -6 -6 -54 -69 -72 -87 -87 -84 -81 -75 -75 -78 -66 -69 -27 -27
Change * 0 0 0 0 0 +3 0 -3 +12 +12 +12 +21 +15 +15 +15 +15 +15 0 0
08.09.09 0 0 0 -6 -6 -51 -69 -75 -75 -75 -72 -60 -60 -60 -63 -51 -54 -27 -27

Program 3. (Flat profile, 120)

Freq. 30 Hz 45 Hz 60 Hz 90Hz 125 Hz 187 Hz 250 Hz 375 Hz 500 Hz 750 Hz 1 kHz 1,5kHz 2 kHz 3 kHz 4 kHz 6 kHz 8 kHz 12kHz 16kHz
16.09.09 0 0 0 0 -6 -51 -63 -75 -84 -87 -81 -78 -69 -87 -81 -72 -60 -27 -27
Dif. pr. 1 +27 +33 +30 +27 0 +9 +12 +3 +3 0 +3 0 +15 0 +3 +6 +12 0 +3

* One have to take into consideration the adjustments that has been made to the programming of my AB CI. Details on that will be posted in a summary if need be at a later time. Primarily the adjustments has been mostly on increasing the amount of power sent to the electrodes, i.e. turning the sound volume up.

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