G
Green Xenon [Radium]
Guest
Hi:
I've posted this before but never got a rational scientific response. I
apologize profusely for the repetition and any annoyance it causes but I
am really interested in this.
EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications
Device for the Deaf] protocols used in Switzerland. Where can I find
technical information about the EDT/EDTN?
Are EDT/EDTN digital or analog?
Im aware that EDT is one of the protocols defined in V.18 and is also
used in several European countries, not just in Switzerland. Thats not
really telling me much about EDT and tells me absolutely nothing about EDTN.
In addition, can EDT/EDTN signals theoretically be used as a form of
dial-up internet access? Obviously it won't be any faster than other
dial-ups -- most likely a max of 56 kbps. The sounds would be different
from currently-used dial-up modems, though. This is because EDT/EDTN
uses different types of signaling than most 56K dial-up modems.
Also, what does EDTN stand for? From what I was told in
http://groups.google.com/group/rec.audio.tech/msg/fe2558b1edeb31c8?hl=en&utoken=4AIZYi4AAAAI2PeJr_MMmQkfz_j8PKAEARYt3Jalo6NNUi8Jt6wYH6Ba_Ois7NjCgNKwU1jjERM
, it stands for "European Deaf Telephone Network." This information
could very well be wrong, given that the poster seems to have a personal
vendetta against me. Given that he/she hates me, its likely that he/she
intentionally gave me an incorrect answer just to shut me up.
I googled "European Deaf Telephone Network" in
http://www.google.com/search?hl=en&q=%22European+Deaf+Telephone+Network%22&btnG=Google+Search
but only came up with 4 searches containing my previous posts. This is
extremely frustrating!!!! I can't believe I am the only one who is
interested in EDT/EDTN!
Also, I would like to hear some tones resulting from the remote
EDTs/EDTNs located in Switzerland. I live in USA, so if I dial an EDT/
EDTN number to Switzerland, I will hear both the EDT/EDTN tones as well
as the tones resulting from negotiations among international telephone
exchanges. Those textphone and international exchange tones give me an
eerie feeling which I enjoy. I get a feeling of pleasant fear. Its give
me a psychedelic sensation. I like it. The tones are scary yet fun --
much like virtual reality, a roller-coaster, or a trip to outer space!
If I could find accurate recording of those tones [tones from remote
Swiss EDTs/EDTNs and international exchange negotiations] on a website
in linear-PCM Wave format and at least 44.1 kHz sample rate and 16-bit,
then I would just download those tones and listen. Unfortunately, no
internet site has recordings of those tones.
I just interested in EDTN because its one of the types of telephone
audio devices no one talks about and it is used in Switzerland by those
with sensorineural deafness. I associate Switzerland with
frightening-yet-enjoyable high-technology magnetic telecommunications. I
don't know why, I just do. Sensorineural-deafness is accompanied by a
false-perception of a high-pitched sine-wave tone resembling the "whine"
of a CRT. Sensorineural-deafness is caused by damage to the acoustic
nerves responsible for translating mechanical vibrations in the cochlear
hair to neural impulses that can be detected by the brain. Since
sensorineural deafness involves acoustic-nerve-damage and the damage
nerves are hyper-excitable, they send crazy signals to the auditory
cortex interpreted as sounding similar to a CRT monitor. This is false
auditory perception is called tinnitus.
The EDT/EDTN uses audio signals to communicate between one EDT/EDTN
device and another EDT/EDTN device. Just like one PC can communicate
with another PC half-way around the world using audio-frequency signals
via dial-up modems.
I've never actually listened to EDT/EDTN but I think I'll enjoy it. I've
listened to American TDD tones by dialing local TDD numbers.
Dial 1-800-543-1586 and you'll hear the American TDD tones I am talking
about. This is an example of a TDD number used in the United States. I
want to hear the Swiss-equivalent of TDD.
Thanks in advance for your assistance, cooperation, and understanding,
Radium
I've posted this before but never got a rational scientific response. I
apologize profusely for the repetition and any annoyance it causes but I
am really interested in this.
EDT [European Deaf Telephone] and EDTN are the TDD [Telecommunications
Device for the Deaf] protocols used in Switzerland. Where can I find
technical information about the EDT/EDTN?
Are EDT/EDTN digital or analog?
Im aware that EDT is one of the protocols defined in V.18 and is also
used in several European countries, not just in Switzerland. Thats not
really telling me much about EDT and tells me absolutely nothing about EDTN.
In addition, can EDT/EDTN signals theoretically be used as a form of
dial-up internet access? Obviously it won't be any faster than other
dial-ups -- most likely a max of 56 kbps. The sounds would be different
from currently-used dial-up modems, though. This is because EDT/EDTN
uses different types of signaling than most 56K dial-up modems.
Also, what does EDTN stand for? From what I was told in
http://groups.google.com/group/rec.audio.tech/msg/fe2558b1edeb31c8?hl=en&utoken=4AIZYi4AAAAI2PeJr_MMmQkfz_j8PKAEARYt3Jalo6NNUi8Jt6wYH6Ba_Ois7NjCgNKwU1jjERM
, it stands for "European Deaf Telephone Network." This information
could very well be wrong, given that the poster seems to have a personal
vendetta against me. Given that he/she hates me, its likely that he/she
intentionally gave me an incorrect answer just to shut me up.
I googled "European Deaf Telephone Network" in
http://www.google.com/search?hl=en&q=%22European+Deaf+Telephone+Network%22&btnG=Google+Search
but only came up with 4 searches containing my previous posts. This is
extremely frustrating!!!! I can't believe I am the only one who is
interested in EDT/EDTN!
Also, I would like to hear some tones resulting from the remote
EDTs/EDTNs located in Switzerland. I live in USA, so if I dial an EDT/
EDTN number to Switzerland, I will hear both the EDT/EDTN tones as well
as the tones resulting from negotiations among international telephone
exchanges. Those textphone and international exchange tones give me an
eerie feeling which I enjoy. I get a feeling of pleasant fear. Its give
me a psychedelic sensation. I like it. The tones are scary yet fun --
much like virtual reality, a roller-coaster, or a trip to outer space!
If I could find accurate recording of those tones [tones from remote
Swiss EDTs/EDTNs and international exchange negotiations] on a website
in linear-PCM Wave format and at least 44.1 kHz sample rate and 16-bit,
then I would just download those tones and listen. Unfortunately, no
internet site has recordings of those tones.
I just interested in EDTN because its one of the types of telephone
audio devices no one talks about and it is used in Switzerland by those
with sensorineural deafness. I associate Switzerland with
frightening-yet-enjoyable high-technology magnetic telecommunications. I
don't know why, I just do. Sensorineural-deafness is accompanied by a
false-perception of a high-pitched sine-wave tone resembling the "whine"
of a CRT. Sensorineural-deafness is caused by damage to the acoustic
nerves responsible for translating mechanical vibrations in the cochlear
hair to neural impulses that can be detected by the brain. Since
sensorineural deafness involves acoustic-nerve-damage and the damage
nerves are hyper-excitable, they send crazy signals to the auditory
cortex interpreted as sounding similar to a CRT monitor. This is false
auditory perception is called tinnitus.
The EDT/EDTN uses audio signals to communicate between one EDT/EDTN
device and another EDT/EDTN device. Just like one PC can communicate
with another PC half-way around the world using audio-frequency signals
via dial-up modems.
I've never actually listened to EDT/EDTN but I think I'll enjoy it. I've
listened to American TDD tones by dialing local TDD numbers.
Dial 1-800-543-1586 and you'll hear the American TDD tones I am talking
about. This is an example of a TDD number used in the United States. I
want to hear the Swiss-equivalent of TDD.
Thanks in advance for your assistance, cooperation, and understanding,
Radium