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.
-- David Woolley Owner K2 06123 On 27/11/2018 01:20, Edward R Cole wrote: > Firstly, I have extreme hearing loss. Without my Phonac-Silvia hearing > aids the world it very quiet. I have something like 30-dB loss in both > ears so not wearing ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
