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homebrew acoustic coupler


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#1 neuro

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Posted 12 April 2004 - 08:05 PM

i just hit a modem while scanning through some AMPS channels and decided that it would be really nice in many respects to have an acoustic coupler around. and since they still cost more that $50+ on ebay (for SOME FUCKING REASON), i think i'll try to build one. i've seen plans on the web, but nothing really that informative. i have a general gist of how they work and how one is built, but does anyone with experience in building couplers have any tips for me, or any really cool links? thanks in advance, people.

#2 quarterduplex

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Posted 12 April 2004 - 08:29 PM

i have a coupler that i built, and it was really easy.
all it is is just a phone with a 9v battery on the green wire.
i have an article on it that i used, out of the "Hacker Information Report" Issue #9.
hack canada has the article up coupler.txt.
check that out. its pretty straight forward. if you need any more help, let me know.

#3 Dramius

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Posted 13 April 2004 - 12:29 AM

could you post a picture of your coupler,?To give us a general idea on how it's supposed to look like. I'm not completely sure on what "type" of phone, i understand it's a one piece, but i like to have pictures( not ansi :P ) to go by with.

#4 Dramius

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Posted 22 April 2004 - 08:12 AM

any luck with this project?, oh and ill ask again, COULD YOU PLEASE POST A PICTURE OF YOUR HOMEMADE COUPLER!

#5 Random_Cola

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Posted 22 April 2004 - 03:02 PM

Yeah, Definantely, let us know how it develops, and pictures too

#6 Dramius

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Posted 28 April 2004 - 08:07 AM

anything yet???? <_<

#7 HolyPhenol-2

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Posted 28 April 2004 - 09:28 AM

do phones used for deaf people use acoutic couplers to do the translation?
just wondering...

#8 Dramius

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Posted 28 April 2004 - 11:08 AM

no idea...

#9 cerealkiller76

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Posted 28 April 2004 - 03:51 PM

do phones used for deaf people use acoutic couplers to do the translation?
just wondering...

No they do a relay with the phone operator. That person types on a TTD, and the operator places the call and talks for the person typing. It's cool because the operator has to say whatever you type down.

Edited by cerealkiller76, 28 April 2004 - 03:55 PM.


#10 neuro

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Posted 28 April 2004 - 06:23 PM

TTY machines use a coupler in a way, as they translate your typing into pulse data and the data into something to show on the screen. same kind of thing, but the modem is different.

#11 replax

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Posted 28 April 2004 - 10:06 PM

a cool thing to do if you ever work in a call center and recieve a relay call...

use very long hard to spell words a lot and talk fast. Legally the relay operators are not supposed to say anything they don't receive from the tty connection. with the exception of "could you repeat that" and the like. i got a noob operator and she got lost and kept saying "slow down, i can't type that fast". she also had to read back what she had so far so i could repeat myself from that point. i had a feeling that was going to be her last relay call. it's a very dick thing to do, but i like messing with people.

#12 planktonitus

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Posted 28 April 2004 - 10:47 PM

http://www.port7alli.../truthmain.html
Theres a link to acoustic coulper plans there... Youll have to find it.

Edited by planktonitus, 28 April 2004 - 10:47 PM.


#13 Dramius

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Posted 28 April 2004 - 11:40 PM

wow thats a big site...the plans on that site are identical to the ones posted above.

Edited by Dramius, 28 April 2004 - 11:42 PM.


#14 Dramius

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Posted 29 April 2004 - 10:43 AM

i'm pretty sure anyway i didnt have time to look throuhg the whole site so i just googled the site for coupler and found HiR #9, which the above article is from.




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