What note is a dialtone?

[Pulling Scabs]

I once heard a guy say that the dialtone on a phone is a perfect pitch
[fill in the blank]. I don't remember which note it was. Has anybody
else heard of this?

Cab

[Johan Almen]

Cab

Well, it used to be 440 Hz (an A) here in Sweden back in the days of non-
digital telephony... ;)
I think it's another matter with the AXE-system though.

--
_____________________________________________________________________
Johan Almen I
I Being paranoid doesn't mean
d91...@nada.kth.se I they're NOT after you.
I

[JOHN V.]

I HAVE HEARD OF BUT I CAN'T REMEMBER WHICH NOTE. THE LATE GREAT
DANNY GATTON PUT OUT AN INSTRUCTIONAL VIDEO BACK IN THE MID '80'S
SHOWING THIS TECHNIQUE.

[Mark Warburton]

Pulling Scabs (law...@uxa.cso.uiuc.edu) wrote:
: I once heard a guy say that the dialtone on a phone is a perfect pitch

: [fill in the blank]. I don't remember which note it was. Has anybody
: else heard of this?

The sound of a dialtone is formed by the combination of two
sine waves, one at 440 Hz (middle A) and the other at 350 Hz.
I can't remember off the top of my head if 350 Hz corresponds
to a musical note.. if it does, then you can play a dialtone
by playing two notes simultaneously.
--
-----------------------------------------------------------------------
Mark Warburton You always find something in the
Bell-Northern Research last place you look!
Ottawa, ON, CANADA

[David Z. Wong]

law...@uxa.cso.uiuc.edu (Pulling Scabs) writes:

>Cab

I've heard that in the US it's actually a combination of two
tones, I believe A and F#.
-Dave

--
It's the one line .sig! Get yours now! David V. Wong:iha...@u.washington.edu

[Jeffrey Robert King]

Well, I've heard (just rumors, I'm probably wrong..) that the
dialtone here (In the Eastern US) is an F.
-Jeff

[Chris145]

In article <D91-JAL.94...@damned.nada.kth.se>,
d91...@damned.nada.kth.se (Johan Almen) writes:

>Well, it used to be 440 Hz (an A) here in Sweden back in the days of non-
<digital telephony... ;)
>I think it's another matter with the AXE-system though.

Johan,

I worked on digital AXE's in the states for five years. The dial tone
provided will be an A.
Perfect for starting Louie-Louie.

:-)Chris

[Karsten Johansson]

I'm in Canada (Toronto). My phone playes a perfect F.

[Chris145]

In article <ksajCzL...@netcom.com>, ks...@netcom.com (Karsten
Johansson) writes:

>I'm in Canada (Toronto). My phone playes a perfect F.

K.J.

Since you are in Canada you are for sure talking through a Northern
Telecom
switch, which could very well provide a nice F.
Ericsson AXE's are a product of Sweden and will give a fine A tone. I
have not had the opportunity to listen to a ATT 5ESS as of yet, so I'm
not sure what key domestic phone switches spit out.

Adios,
CsW

[Ken Orford]

>
> PS> I once heard a guy say that the dialtone on a phone is a perfect pitch
> PS> [fill in the blank]. I don't remember which note it was. Has anybody
> PS> else heard of this?
> PS> Cab
>
> With or without a capo :*)
>
Dialtone in most parts of North America is actually two tones combined,
350Hz and 440Hz. 440 is middle A. 350 sounds like it may be an F because
the dialtone sounds like the first and third of an F major chord.

Just my $.02 worth.

Ken Orford he...@bnr.ca
Bell Northern Research, Ottawa, Canada. (Not my employer's opinions!)

[Glen Word]

PS> I once heard a guy say that the dialtone on a phone is a perfect pitch
PS> [fill in the blank]. I don't remember which note it was. Has anybody
PS> else heard of this?
PS> Cab

With or without a capo :*)

a
___ Blue Wave/QWK v2.12

[Johan Kristian Sveen]

Yep ....very often they use the 440 Hz A.

JKS

[Patrick Wang]

Johan Kristian Sveen (joh...@ifi.uio.no) wrote:

: In article <94112222...@equinox.org>, glen...@equinox.org (Glen Word) writes:
: >
: > PS> I once heard a guy say that the dialtone on a phone is a perfect pitch
: > PS> [fill in the blank]. I don't remember which note it was. Has anybody
: > PS> else heard of this?
: > PS> Cab

After just listening to my phone, it's an F...

[Brian R Ross]

I always heard it was an F

[Ken Orford]

Dialtone is an F (350Hz) and an A (440Hz) - TWO TONES NOT ONE
IN MOST OF NORTH AMERICA - JUST LISTEN TO IT!!!
--
***************************************************
$ Ken Orford Bell Northern Research $
$ Email: he...@bnr.ca Ottawa, Canada $
***************************************************

[Tor-Einar Jarnbjo]

Pulling Scabs (law...@uxa.cso.uiuc.edu) wrote:
: I once heard a guy say that the dialtone on a phone is a perfect pitch

: [fill in the blank]. I don't remember which note it was. Has anybody
: else heard of this?

: Cab

In Norway I measured the dial-tone to 435 Hz, which is slightly
below an one-stroke A (440 Hz)

Tor-Einar

[mike ackers xr/mgm 4622]

: Cab

Tor-Einar

Hi, I'm not quite sure what this has to do with guitar (maybe some exotic
open tunings?) but here goes ;-)
In telecoms (uk and a few other countries) the tone must only contain freqencies
that are multiples of 25Hz, ie the tone must be sinusoidal, or a sum of sinusoidals,
each freq a multiple of 25Hz. the tones are programmmed into a PROM chip.
for the UK dialtone is 350Hz, second and special dialtone is 450Hz
busy,congestion,line lock-out,NU tones are all 400Hz.
Holland D.T is 150 or 450Hz (maybe). Austrailia is either 400,425 or 450Hz
depending on the dBm0? level so I'm not sure.
Hope this helps.... by the way the freq range is 0-4000Hz.
I don't know what note corresponds to 350Hz only that 440Hz is A
as is 220Hz. I'll have to get my tuner out.

ps anyone got any Hawkwind tab? I'm working on one at the moment,
but it ain't easy.... bye Myke.

+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+Mike Ackers Product Support | -Emergency Support Engineer+
+e-mail etl...@etlxdmx.ericsson.se | (My views not the companies +
+memo etl.e...@memo.ericsson.se | usual disclaimer +
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+