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From: Richard Webb on 24 Jul 2010 15:11
Denny Strauser writes:

> If nothing else, Phil is consistent & preDICTable.

And the op learned nothing about the topic on which he asked a question, but MR. toaster shows the world that he's off
his meds and hasn't had access to the sheep for awhile.

Regards,
Richard
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From: Leon on 24 Jul 2010 20:15
On Wed, 21 Jul 2010 09:23:00 -0400, "Steve M" <mcsteve1350x(a)verizon.net> wrote:

>Have any of you used or installed this type of system?
>One of my clients has asked about them. They are speaking
>of the type that is compatible with standard hearing aids, rather
>than the systems that require individual belt pack/headsets.
>I am trying to get an idea of cost and effectiveness. This particular
>application would be used in a community center that's roughly
>50 x 100 ft in area.
>
>TIA

Welcome to audio news group hell! You've met the regulars...

I used one of those systems years ago, but they are a bit different today...

I don't know the cost, but you do need to get an amp system designed to do this,
-specifically run a loop designed to affect normal hearing aids, which have a
special pickup coil already installed. (Most of today's designed aids have one.
I forget the name of it... getting old I guess...)

From the size you say, you'll probably need a few hundred watts... When the
system is working properly, they work great. The one I used was for different
language translations. IE when someone spoke French, the system broadcast
English.

Depending on where you are, there could be extra laws involved, mostly involving
interference with other systems IE radio or TV.

You really need a specialist for this.

From: Ty Ford on 27 Jul 2010 16:45
On Sat, 24 Jul 2010 20:15:23 -0400, Leon(a)nospam.com wrote
(in article <2pvm461mbodif5n30tf4g8uujlr79jk6nn(a)4ax.com>):

> On Wed, 21 Jul 2010 09:23:00 -0400, "Steve M" <mcsteve1350x(a)verizon.net>
> wrote:
>
>> Have any of you used or installed this type of system?
>> One of my clients has asked about them. They are speaking
>> of the type that is compatible with standard hearing aids, rather
>> than the systems that require individual belt pack/headsets.
>> I am trying to get an idea of cost and effectiveness. This particular
>> application would be used in a community center that's roughly
>> 50 x 100 ft in area.
>>
>> TIA

I have some experience with this. You need an amp that's geared to push a
long wire, not just a power amp for a stereo. You need to tune the amp to the
impedance of the radiating wire, otherwise it won't work.

In the US and UK, Ampetronic gear is tops.

In the US, AssistiveAudio carries it.

Call Fred in Toledo and tell him Ty sent you.

http://www.assistiveaudio.com/

To cover all parts of a 50 x 100 floor, you need to know things like what's
the floor made of, what's under it, etc.

There are specific calculations that are made to get the right spacing.

A space that big will likely require large coils laid out in specific not
cancelling patterns.

Fred knows that stuff very well.

Regards,

Ty Ford




--Audio Equipment Reviews Audio Production Services
Acting and Voiceover Demos http://www.tyford.com
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From: Steve M on 27 Jul 2010 19:19
"Ty Ford" wrote:
> I have some experience with this.
> In the US and UK, Ampetronic gear is tops.
>
> In the US, AssistiveAudio carries it.
>
> Call Fred in Toledo and tell him Ty sent you.
>
> http://www.assistiveaudio.com/
>
> Fred knows that stuff very well.
>

Thanks, Ty. More along the lines of the type of info I was hoping for,
rather than the usual noise from a certain party.

--
Steve McQ


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