Thats it!

That should be all you need to do. Now turn on your TV or sound source, turn on your loop receiver, and set it to the proper input. Make sure the balance is set to the center or to the side you chose for the input. Set your hearing aid to the "T" setting and turn up the volume on the loop receiver until you can hear it. I generally have to turn mine up 3/4 of the way or more for best results.

Potential Problems

Because this produces a small magnetic field, it has the potential to bother some sensitive electronics. I have experienced no problems in either location I have set up my system, but I guess there are problems in some theater applications especially (electric guitar pickups are an example). But those systems often use significantly more power to the loop creating a much bigger magnetic field than you will need. The only real problem you may run into is if you are living in the dorms or in an apartment building where other hearing aid users may be located above, below, or to the side of the room where your loop system resides. If your system has a lot of power and is turned up really high, or possibly even at a normal setting, people in other rooms or apartments may be able to pick it up on their hearing aids while trying to talk on the phone or use a loop system of their own. For this reason I would recommend turning your system off when not in use, and if it does cause problems like I described, you can try adjusting the volume so that you can still use it without bothering the neighbors. Ultimately there may be no good solution beyond that. Fortunately I don't think the problem would exist very often if ever.

Other applications

I have often thought that this would work really well in a car too. Simply use a car amp, and the same wiring method. It may require wrapping the cable around the interior more than once to get it long enough, even with multiple conductors inside. But you also need to consider that car audio usually operates on 4 ohms, or sometimes even at 2 ohms impedence, so be sure to take that into consideration when creating your system.

Need help?

I know that a lof of what I described is very technical, requiring a bit of knowledge about electronics and wiring. It also requires you have a soldering iron and multi-meter. If you have questions or would like help, feel free to contact me via email at: mcr2582@rit.edu

I would be happy to demonstrate my system for you and help you build one of your own.

 

Return to my webpage