My name is Andreas Seelisch and I’m an audiologist
working with Hearing Solutions. I’d like to talk to you a little bit today
about some of the wireless components that are available for hearing aids today.
Hearing aids are able to connect to a variety of different devices through wireless technology,
including Bluetooth. This means we can take cell phone calls directly
from our phone and answer them into our hearing aids.
It also means we can take audio samples from just about any audio signal.
Most commonly this might be something like a television.
The reason we want to do this isn’t because the hearing aid won’t work without a television
[but] because it can just make it something better.
Audio when it leaves something like a speaker is bouncing off of a lot of other objects
and it’s losing energy on its way and it may be changing.
We also may be introducing noise – another person talking, a fan, an engine – anything
that’s going on in the background and all of this can reduce from the enjoyment or it
can make the signal to noise ratio worse. When we use a wireless device like this we’re
taking the audio directly from the television and putting it directly into the hearing
aids. This means that the signal isn’t being converted
from electrical energy into acoustical energy in extra time.
It also means there’s less noise involved. Overall what this means to the patient is
just a much better listening experience. Most of these systems make use of a base unit
that gets attached to the TV. A lot of my patients are concerned that the
set-up is something that’s scary and so they avoid doing it.
But this is something that only needs to be completed one time.
The first item is connecting it a power source. It should be some sort of power cable that
gets connected into the base station and gets connected into the wall.
This doesn’t typically require line of sight, meaning that it can be out in the open or
it can be tucked away in a cupboard so that there’s no hassle with cords hanging around.
The second cord is very important. This is the cord that’s going to be taking
the audio signal from the television, stereo or wherever you’re trying to capture the
music or audio from. Again, one plug is going into the back of
the unit. This can be through something like an optical
cable, a 3 ½ millimetre audio jack or an RCA or composite cable.
One of the plugs is again getting connected to the back of this device and then the other side
needs to be connected to the television. One of the most important aspects of setting
this up is ensuring that the audio coming out of the TV is going into either an auxiliary
– A-U-X or an Audio OUT. If this is connected correctly, the audio
signal is then being transferred wirelessly right to the individuals’ hearing aids.
If people are not getting the signal that they want or questioning whether or not it’s
working, it’s not set up correctly and so we just have to make sure that it’s connected
to the correct Audio OUT. For example, if you’re watching television
on Audio 3, you would have to connect to the Audio OUT 3 on the back of the television.
So, one of the most common mistakes when connecting these units is that people are tempted to
put the plugs in to first matching plugs that they see.
In this case, they’d want to put these red and white cables in to one of these red and
white cables back here. Unfortunately, that would be incorrect in
this case. These plugs are video and Audio IN.
Instead we want to pick an Audio OUT and so we we’re going to pick this cable right
here. Instead we’re going to be using this optical
cable and that’s going to be connected in to the Audio OUT right here.
Now we have everything connected correctly. Thank you, my name is Andreas Seelisch and
I’m an audiologist working with Hearing Solutions.