[Elecraft] FS: New CM500 headset

[John Simmons]

A friend of mine told me about the new Olive hearing aids coming from S. 
Korea. They are currently being sold only on Indiegogo and one ear is 
$139 instead of the multikilobuck jobs. I'm interested to hear how they 
work for him. You configure the amplification and response curves using 
a smartphone app.

-John NI0K

David Woolley wrote:
>
> Are you sure of those figures?  30dB is normally only considered mild 
> loss.  15dB is in the normal range.
>
> I have at least 40dB. across the spectrum, in one ear, and 15dB at 
> 500Hz, degrading to 70dB at 8kHz, in the other, and I'm only classed 
> as having a moderate loss.  These figures are a few years old, so the 
> current ones are marginally worse.
>
> If you have severe enough loss to need full ear moulds, I think all 
> modern aids have various options to directly feed the aid with, at 
> least mono, audio, and some headsets will naturally work with aids 
> that can be set to an induction loop setting.
>
> Typical options for full stereo, are blank headsets, that just create 
> an induction field, ear hooks that hook over the ear and create an 
> induction field, and direct audio input shoes that plug into over the 
> ear aids, and allow a copper connection to the aid.
>
> For most aids you can get a bluetooth adapter, that you wear on a, 
> conductive, neck loop.  This is generally mono.  You can typically 
> provide a copper audio feed to these, in which case there is no 
> bluetooth (the near field link uses a different protocol, and at HF, 
> not SHF), or you can remote bluetooth adapters, which have low 
> latency, as well as the normal bluetooth adapters, with their high 
> latency.
>
> The Phonak brand name for this feature is ComPilot.  My aids are 
> Oticon, for which it is ConnectLine.
>
> I think the open fit aids, used by people with, typical, age related, 
> high frequency loss may be more of a challenge, as they are designed 
> to pass the low frequencies directly and only amplify the high ones.
>