[Elecraft] K3 and hearing aids

[Jan]

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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