Re: t-coils

January 6, 2006

The T Coil is a cool thing. Evidently, when the phone changes electrical signals

back into audible sound, there is more electrical signal than is needed so it

escapes into the ether. The T Coil picks up that excess electrical signal and

changes it back to sound inside the hearing aid and sends it on down the ear. So

with the T setting, all you can hear is the signal from the phone, nothing in

the background. Some TCoils are stronger than others. A hearing aid compatible

phone means that it lets out enough of the excess electric signal. I think some

hearing aids have an M/T setting so you can get both phone and background or

background and person with an FM transmitter. The other thing that works with a

T Coil is a non-direct audio input FM system like a neck loop. The neck loop

picks up the signals from the transmitted and gives off the signals to the

hearing aid TCoil which picks them up. However, according to my daughter, the

direct input FM (like a microlink) gives much clearer sound than through a neck

loop system. in GA

t-coils

>

>Can someone simply explain t-coil. I know my son has the setting on his aid

too. Does it need to be programmed for him? We've never used it. How does it

change the sound input? I just got to thinking that maybe he could use it when

he uses the headphones in the preschool " listening center " They have a tape

recorder with the big headphones and really the sound is just terrible in my

opinion. I've wondered if he should even bother with it or considered plugging

him directly in with his CI. But he seems to hear it with just the headphones.

I have still wondered if they should take his hearing aid off (because it would

distort sound that is already distorted with the machine?) or try the tcoil

setting. Any thoughts?

>

> K

>'s mom, MEDEL CI at 20 months and hearing aid, 5 years old

>

January 6, 2006

Although my daughter has a Tcoil in her aids, it is turned off at the present

moment. The reason we decided to deactivate it for now is because the " on/off "

switch is just a button and we felt she would accidently push the button and

actually switch the aids " off " . So its turned off until she needs more acces to

phones and other stuff - which in my husbands opinion will be never!

pcknott@... wrote: The T Coil is a cool thing. Evidently, when the

phone changes electrical signals back into audible sound, there is more

electrical signal than is needed so it escapes into the ether. The T Coil picks

up that excess electrical signal and changes it back to sound inside the hearing

aid and sends it on down the ear. So with the T setting, all you can hear is

the signal from the phone, nothing in the background. Some TCoils are stronger

than others. A hearing aid compatible phone means that it lets out enough of the

excess electric signal. I think some hearing aids have an M/T setting so you

can get both phone and background or background and person with an FM

transmitter. The other thing that works with a T Coil is a non-direct audio

input FM system like a neck loop. The neck loop picks up the signals from the

transmitted and gives off the signals to the hearing aid TCoil which picks them

up. However, according to my daughter, the direct input FM

(like a microlink) gives much clearer sound than through a neck loop system.

in GA