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Listening Device for the Hard of Hearing

Discussion in 'Misc Electronics' started by W. eWatson, Feb 21, 2009.

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  1. W. eWatson

    W. eWatson Guest

    I have an elderly neighbor who has difficulty with his hearing aids. It's
    fairly common at his age. I think he and others would profit greatly if he
    had a listening device he could hang around others, so that he could hear
    them speak. RShk sold one a few years ago, and I've even seen one person
    wearing one. Are there others? It was somewhat bigger than a matchbox, maybe
    like an Ipod.
    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  2. Guest

    See these:

    http://www.heartlandamerica.com/bro...7847-57E3-4B8E-9860-C41F5DA44B22&storefront=1
     
  3. W. eWatson

    W. eWatson Guest

    It shows zero found. I see turbo ear, but that's like a hearing aid. The
    device I saw was a box that hung around the person's ear, and had an ear
    piece that went to his ear. The benefit is that it's not so easy to lose and
    the volume could be adjusted easily.

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  4. Huh?

    The problem may be that the hearing aid(s) aren't configured for the
    person. Nobody loses their hearing at the same rate or the same
    frequency loss as anyone else. A proper hearing aid allows for
    configuration for the specific person's hearing.

    Cheap off the shelf "hearing aids" are mere amplifiers, and all
    a mere amplifier will do is amplify the sounds, which won't deal
    with lousy high frequency response (by the time it's loud enough
    up there, a straight amplifier will supply way too loud low frequency
    sounds), or the loss of dynamic range in the ear.

    An external box, which is what hearing aids looked like back before
    transistors made for small units, is still a hearing aid. The only
    advantage is if it does pack more circuitry in there, but chances
    are very good that it's just a cheap amplifier.

    The one thing that may help is to get the signal pickup closer to
    the sound source, so one doesn't have to turn up the volume control
    to hear someone across the room; the problem then is that it also
    amplifies every sound, and the ratio is the same. A directional
    microphone, or one placed closer to the person speaking, will
    get a better signal without picking up the junk. Some/many hearing
    aids have external inputs, though I'm not sure there is a standard,
    to allow for external microphones. That's always a better choice
    since it incorporates the hearing aid's frequency shaping and any
    AGC that was configured for the specific user.

    The same when watching tv. Bringing the signal direct from the
    tv set via a headphone extension or even a microphone placed close
    to the tv set's speaker, will get the user closer to that sound
    source without having to turn up the volume and hear the
    frogs outside as loud as the desired sound. If the current
    hearing aids have external microphone jacks, then that's the
    way to go.

    Many/most hearing aids, at least real prescription ones, have
    an induction loop inside, to allow the aids to be used with
    telephones. So that's another way of coupling a signal into
    the hearing aid, a microphone feeding a small amplifier that
    feeds an inductive coupler placed next to the hearing aid(s).
    Again, that includes the frequency shaping of the hearing
    aid in the signal chain, unlike an amplifier feeding headphones.

    So the person should be checking to make sure the hearing
    aid(s) are still useful to them and properly adjusted. The
    hearing aid store is bound to have useful accessories, including
    pre-made inductive loops to get sound into the hearing aids (assuming
    they have the "telephone pickups").

    There may be a local store that sells products for those with
    hearing loss, be it a standalone store or one that generally
    supplies items to the handicapped. There may also be organizations
    that help those with hearing loss, that may offer such items
    on a cost basis or point to local resources.

    Michael
     
  5. JeffM

    JeffM Guest

    Stuff we don't tend to think about.
    We certainly didn't think about it when we were young and stupid
    and went to rock concerts without earplugs.

    I went looking for spectral plots
    http://google.com/images?q=hearing-loss+graph
    and found dramatic data about guys who use percussive tools all day:
    http://www.cdc.gov/niosh/topics/noise/pubs/images/hearingloss.jpg
     
  6. W. eWatson

    W. eWatson Guest

    Been traveling for four days. I've found a walkie-talky very effective with
    him. I don't need my end to listen to him, but do need it to talk to him.
    However, casual visitors that see him just don't see it that wait. Instead
    they fall into the habit, along with him, of shouting to make themselves
    heard. If I could find the box I initially described in my original post, I
    think it would be better than the walkie-talky arrangement. No fuss, and no
    muss about getting it into his ear. He would just hang it from him neck onto
    his chest. Hard to lose and no need for the other person to have a receiver.

    When one reaches 80+ years, his case, then hearing aids are a continual
    problem. The very elderly get very careless and forgetful. On top of that,
    his case, fingers don't work well, so getting the aid in place is difficult.
    He has very expensive aids. In my view, for him, they are worthless.

    --
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

    Web Page: <www.speckledwithstars.net/>
     
  7. David

    David Guest

    There is an app for the APple iPhone/Ipod Touch that amplifies sound -
    handy gadget for hearing what the kids are up to, or just helping those
    who have trouble hearing

    David
     
  8. hearing80

    hearing80

    1
    0
    Mar 2, 2010
    Hi,

    To know more about hearing aid and hearing loss visit hearingfix. It works for you.
     
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