--- Forwarded Message from Marty Dewindt <[log in to unmask]> ---

>Date: Thu, 01 Nov 2001 16:00:20 -0600
>To: Language Learning and Technology International Information Forum               <[log in to unmask]>
>From: Marty Dewindt <[log in to unmask]>
>Subject: Re: #6364.2 teleste divace, Sony symphony systems (!)
>In-Reply-To: <[log in to unmask]>

------------------
We solve the network/power interference with dual channel raceway. This is
a metal channel with a metal divider down the center that eliminates
interference. We have not used this yet in our language labs (12 years
old!), but use it in all other labs. 

Marty



At 03:51 PM 11/1/01 EST, you wrote:
>--- Forwarded Message from Judy Shoaf <[log in to unmask]> ---
>
>>Date: Wed, 31 Oct 2001 15:44:17 -0500
>>To: Language Learning and Technology International Information Forum
<[log in to unmask]>
>>From: Judy Shoaf <[log in to unmask]>
>>Subject: Re: #6364 teleste divace, Sony symphony systems
>>In-Reply-To: <[log in to unmask]>
>
>------------------
>I didn't even realize lights could interfere with electronics until last 
>week, when I was told that the fluorescent lights were interfering with a 
>fairly minor function (I think remote control of a VCR from the ICM teacher 
>software on our Tandberg system).
>
>However, when we installed the new Tandberg system last summer there was a 
>lot of discussion about potential interference between the power cords and 
>the computer networking wires, to which of course we were adding the audio 
>communication lines from the instructor computer. I'm not really sure there 
>is enough distance between types of wires where they run parallel in the 
>walls, but once they hit the booths there is more than 8" between sets of 
>wires, which I believe is recommended. I believe that having one group of 
>wires run perpendicular to the other is bad, too.
>
>We have 30 stations in 4 rows and the sound is generally excellent, whether 
>the student is accessing the internet or a local file. Teachers are pleased 
>with the quality of recordings on speaking tests, too.  The only real sound 
>problem we had seemed to be due to a loose connection in the Tandberg 
>network, and it was easily fixed by our rep.
>
>Judy Shoaf
>University of Florida
>
>
>
>>This question is geared more towards those people who have been using
>>the Divace or the Sony Symphony systems.  We are still trying to get
>>funding and determine plans for a new lab system.  Our current system is
>>not very good.  We run the regular Windows recorder on our system, and
>>we have dreadfully poor quality audio from it.  Mostly due to a large
>>amount of feedback in the room.  This we expect is partly due to the
>>type of lighting that we have in the room, but also due to the power
>>cords that run throughout the room.
>>
>>What I am wondering about is if anyone has had any experience with
>>similar problems when running the new Sony or Divace systems.  Or,
>>whether they were ever advised that a particular configuration of
>>machines helped to reduce these problems.
>>
>>I am also wondering how many stations are being run in a lab with the
>>system and what size the lab is.
>>
>>Thanks so much!
>>Deanne Cobb
>>University of Regina
>
>
Marty DeWindt                           [log in to unmask]
Academic Technology Director    618-374-5132
The Principia                           www.prin.edu