[Elecraft] Heil Pro 7 headset with KX3 - RF feedback?
Rick NK7I
rick.nk7i at gmail.com
Fri Jun 18 15:04:25 EDT 2021
Slight topic change, apologies.
Has anyone used rx audio via Bluetooth into their hearing aids? Any issues?
I was hoping the K4 would have BT audio, but it doesn't. So the next
best option would be to send the sound card audio to BT in a computer,
linked to the aids or headset... I don't have my K4 yet, so it's a guess.
73,
Rick NK7I
On 6/18/2021 11:58 AM, Jim Brown wrote:
> On 6/18/2021 11:34 AM, Ed Cole wrote:
>> I wear hearing aids and the CM500 immediately set up a loud howl the
>> minute I put them on (even with not being plugged into the radio).
>> Apparently my hearing aid gain is so high the CM500 provided feedback
>> to the hearing aid mics - I have two with my OTE (over the ear)
>> hearing aids.
>
> That's acoustic interaction of the earphones with your aids, and
> depends on the placement of the mics in the aids. Mics for the aids
> are picking up their own amplified sound, because the acoustic space
> around the ear is modified by the presence of the earphones. In sound
> systems, we call that feedback. It makes sense that different
> headphones would interact differently with aids, depending on the
> construction of both.
>
> My XYL uses aids where the mics are outside the ear. She doesn't use
> headphones when she's wearing them.
>
> 73, Jim K9YC
>
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