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Author Topic: Is An Ifrared Audio System Capable of High-Fidelity?  (Read 4093 times)

Barry Hufker

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Is An Ifrared Audio System Capable of High-Fidelity?
« on: January 14, 2011, 01:52:50 PM »

I want a system for a classroom where audio is played from an infrared transmitter to individual receivers.  The students would plug headphones into one receiver each.  The trick is, the system has got to sound good.

Any thoughts?

Barry

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ssltech

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #1 on: January 14, 2011, 03:42:49 PM »

Good luck when anyone uses an IR remote control.

Keith
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MDM (maxdimario) wrote on Fri, 16 November 2007 21:36

I have the feeling that I have more experience in my little finger than you do in your whole body about audio electronics..

MagnetoSound

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #2 on: January 14, 2011, 05:21:14 PM »

... or stands up.
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Music can make me get right up out of my chair and start dancing or it can get me so pumped up I have to walk around the block.
It can also knock me back and make me sit there and cry like a little baby. This shit is as powerful as any drug!!!
- Larry DeVivo

sodderboy

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #3 on: January 14, 2011, 06:43:55 PM »

Anything IR that I have tried with home clients is way too hissy to pass with studio clients, and those are only 1:1 systems.
You want some IR broadcast in the room, available for stations to receive?
If no wires are allowed, then you might want to go with a simple low level FM transmitter and buy FM headphones that can be tuned to your frequency, Kenneth.  I have set some simple "have a listen" systems that way.  Stereo is a bit more expensive than mono by a factor of 20.

Think about a spider wire system for distributed cues that can be rolled out for the classes and back for extra credit- you will get the best fidelity and "bang" for your buck.

What is the user count, anyway?
Mike
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Barry Hufker

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #4 on: January 14, 2011, 10:29:47 PM »

The number of users would be 15 usually and not more than 20.

I've thought about a "roll-out" system but hoped for "plug and play".

Barry

"Good luck when anyone uses an IR remote control.

Keith"


Why, will the students be forced to obey?!

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dcollins

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #5 on: January 15, 2011, 02:27:48 AM »

Barry Hufker wrote on Fri, 14 January 2011 19:29

The number of users would be 15 usually and not more than 20.

I've thought about a "roll-out" system but hoped for "plug and play".



I know Sennheiser makes these for large area coverage, but no idea of the quality.

DC

JimmyJ

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #6 on: January 15, 2011, 02:54:10 AM »

dcollins wrote on Fri, 14 January 2011 23:27



I know Sennheiser makes these for large area coverage, but no idea of the quality.

DC


the audio specs look pretty good but they're not cheap...
http://www.sennheiserusa.com/professional_communication-syst ems_conference_infra-red_USSI1015-8000%20DUAL
(That's the big rig though, they offer a few.)
Jimmy J
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Barry Hufker

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #7 on: January 15, 2011, 02:30:07 PM »

That's an impressive system.  Unfortunately overkill for my needs.  But it does tell me I should do a wired system for much less and just live with the inconvenience.

Thanks guys!

Barry

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industrial arts

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #8 on: January 17, 2011, 08:06:24 PM »

Have you tried Googling "IR Headphones"?  There are a lot of solutions out there, maybe you could adapt something for your situation.
 
IR headphones have been used in museum and gallery situations for guided tour information.  IR Headphone carriers frequencies are outside the carrier freqs for most remote controls, so interference from them should not be a problem.  Directionality, reflectivity and line of site interference are typical IR problems.

I found this link that has some useful information regarding IR headphones (and others) in a large space.

  http://www.tomshardware.com/forum/47378-6-multi-source-switc hing-radio-headphones-gallery



Mark Springer
industrial arts
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Barry Hufker

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #9 on: January 17, 2011, 08:52:59 PM »

Thanks Mark, I'll look into this.

Barry

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zmix

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Re: Is An Ifrared Audio System Capable of High-Fidelity?
« Reply #10 on: January 18, 2011, 11:33:29 AM »

900mHz headphone systems are plentiful and cheap...
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