Todd H.
Guest
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 Posted:
Thu Jan 27, 2005 4:33 am Post subject:
Re: Help please playing MP3 through telephone switchboard |
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tonyp <tonyp.1jhgpm@news.audiobanter.com> writes:
| Quote: | Hi, can anyone help please?
I have a Norstar Meridian telephone system and I want to play
background music on hold from my mp3 player.
The switchboard has a music input jack with recommended input impedence
3300 ohms 1volt rms.
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Alright...1 Volt is line level.
| Quote: | The mp3 player has only a stereo headphone output socket.
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Ugh.
| Quote: | The music plays ok with good quality over the phone but the volume is
low. Is there anything I can do to boost this please?
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Yes...but, given the economies of scale, a new mp3 player with a line
level output might be cheaper.
Then again, this Behringer mixer is probably flexible enough to get you
where you want to go. Arguably overkill, but hell for $35 how wrong
can ya go?
http://www.americanmusical.com/item--i-BEH-UB502.html
Remember also, you're taking a stero source (think of left and right
as two completely separate channels) into a mono device (your phone
system), so you need to mix the left and right channels.
So, get a that 1/8" stereo output of your mp3 player into individual
1/4" plugs somehow (for instance radio shack part 42-2550 to get 1/8"
stereo to two RCA plugs, then use two 274-884 to convert RCA to 1/4"
plugs), and put one into line 2 left and the other into line 3 left.
Pan both of those full left on the mixer, and then take the left
output of that thing into your telephone system using the appropriate
adapter to get from 1/4" to whatever your phone system accepts.
That will properly sum the 2 outputs of your mp3 playing into the mono
input of your phone system, and provide you the flexibility to
increase the gain as needed.
Good luck.
Best Regards,
--
/"\ ASCII Ribbon Campaign | Todd H
\ / | http://www.toddh.net/
X Promoting good netiquette | http://triplethreatband.com/
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