Fred,
ReSound sells hearing aids that work with their own Mini-Mic. The
Mini-Mic pairs with the hearing aids and plugs into any headphone output
(I needed an adapter for the small Mini-Mic plug and the big phone plug
on the K3).
73,
Jan, KX2A
On 11/17/2014 6:36 PM, Fred Jensen wrote:
On 11/17/2014 1:01 PM, Phil Wheeler wrote:
I added a hearing aid to my
only functional ear a week ago and found not only improved volume but
improved freq response (in retrospect, not a surprise!). Now folks with
high, "squeaky" voices are much more intelligible than they were before.
Very important topic for those of us with compromised hearing. Both my
ears still work, but the bulk of my hearing disappeared in one event
one night many years ago. I hear almost nothing above about 1200 Hz
where both ears are about 85 dB down, without the $6,000 worth of
microelectronics stuffed into my ears [fortunately, the government
pays for mine :-)]. My new ones can identify music, conversation,
noise, fire truck sirens, and CW, and adjust accordingly. They even
talk to each other so they change programs together.
The downside is using headphones: I've preferred an Apple ear bud and
have quite a collection. So I'm experimenting with new headphones vs.
removing the hearing aid. I tried one over the ear type, well reviewed,
that resulted in a sequence of chimes in the hearing aid -- not a good
sign.
Mine do not work under my headphones [Heil Pro-Set I got from
Elecraft], they just shut down. I run the AF Gain at about 1 o'clock
on CW [don't operate much SSB, too hard to understand] which is right
at the beginning of distortion in the cans. I don't know if it's
coming from the K3 audio amp, or the headphones are being overdriven.
My CW sidetone is at 570 Hz, and I use a mark of 915 Hz on RTTY, both
of which I can hear if they're loud enough.
Since the hearing aids communicate with each other [if I manually turn
one up or down, the other does it too ... some bluetooth-ish thing I
suppose], I've wondered if there's a way to feed audio directly into
them from the K3. I haven't found one yet, and I don't know if it
would be better than the headphones.
If the audio distortion is coming from the AF amp in the K3, an
outboard amp might allow me to get higher sound levels in the
headphones. If it's coming from overdriving the headphones, maybe I
need a better headset/mic? If anyone has any experience driving
digital hearing aids directly, I'd like to discuss it with you. My
aids are Phonak Savia's.
SS SSB and NAQP SSB are the only phone contests I play in, and only
then to create some points for my club. Last weekend's SS SSB was a
real slog for me.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
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