Audio into phone line

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ModRob
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Audio into phone line

Post by ModRob » Fri Oct 24, 2003 9:52 pm

I'd like to take a stereo output and input it into a phone line so the person on the other end can hear the audio...<p>Any help would be appreciated.
Tim

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Re: Audio into phone line

Post by Dean Huster » Fri Oct 24, 2003 10:03 pm

Sounds like something that ham radio operators have been doing for eons. Check out any edition of the "Radio Amateurs Handbook" from the ARRL for more information on interfacing to the phone line with audio equipment.<p>Dean
Dean Huster, Electronics Curmudgeon
Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines).

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Re: Audio into phone line

Post by cato » Sat Oct 25, 2003 5:19 am

By the way, as you are flipping through the Handbook (or Googling for that matter), you should be looking for articles and information related to --PHONE PATCHES--. <p>These are the devices that let Radar and Sparky patch Hawkeye through to Adam's Rib in Chicago so Hawkeye could place his take out order, including extra sauce.<p>Of course, if you're hoping to get both sterio channels through the phone line or hoping to maintain high fidelity, you're gonna have your work cut out for ya....

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Re: Audio into phone line

Post by Externet » Sat Oct 25, 2003 6:13 pm

Hi.
Check an earlier post here:<p>http://206.131.241.58/ubbcgi/ultimatebb ... =000459&p=<p>Miguel
- Abolish the deciBel ! -

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ModRob
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Re: Audio into phone line

Post by ModRob » Sat Oct 25, 2003 6:51 pm

Miguel: I went to the earlier posting, but it's a little confusing to me...in the opening statment, you mention several items. I'm not following if I need one of them or a combination of them...<p>Thanks guys...I'll do that research that you mentioned..
Tim

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Re: Audio into phone line

Post by Externet » Sun Oct 26, 2003 6:31 pm

Hi Tim.<p>If you mean this : "Find any type of small transformer, a transistor radio output stage one, or a driver, or a small AC power adapter one."<p>Is exactly that: You need ONE and only one transformer of any of these.<p>Have you seen those about ½" x ½" x ½" miniature transformers in the output stage of an old dead transistor radio ? -Usually blue or red- That will work fine.<p>What is important is the winding to be inserted in SERIES to ONE of the telco wires should be about less than 10 ohms. Measure with your meter.<p>Miguel
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ModRob
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Re: Audio into phone line

Post by ModRob » Mon Oct 27, 2003 9:22 am

Hey thanks Miguel! Now I understand. I'll be giving this a try soon...
Tim

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Re: Audio into phone line

Post by Michael Kaudze » Mon Oct 27, 2003 10:23 am

If you want them to hear the music when they are on hold, this is very easy.. <p>Just plug in any audio source such as a Radio, CD player, PC, etc. <p>http://www.music-on-hold.net/<p>Hope this helped!
Intelligence is the ability to adapt to change. Stephen William Hawking.

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ModRob
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Re: Audio into phone line

Post by ModRob » Tue Oct 28, 2003 12:06 am

Webguy:
Very interesting product! For 59 bucks, may be the easiest way to go, although that would rule out the "hardheaded, have to do it my way" factor that is my usual character...sometimes takes the fun away from it...
Tim

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Re: Audio into phone line

Post by dyarker » Tue Oct 28, 2003 9:15 am

You should read Tommy Volts' Telephone Interface thread in this forum. I just got a little long winded over there. But, what applies to listening to a phone line also applies to putting in a signal.<p>To combine stereo to mono you'll need two resistors, so one channel doesn't drive the other.
Dale Y

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