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Old dial tone

Started by Phonesrfun, May 09, 2010, 04:39:35 PM

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Adam

Quote from: deedubya3800 on March 12, 2011, 12:17:44 PM
I remember that, long ago when I dialled a number, the dial tone didn't stop until that first digit was dialed.

This is actually how my ATAs hooked up to my Asterisk switch work, too!  Sounds just like the old days!  :-)
Adam Forrest
Los Angeles Telephone - A proud part of the global C*Net System
C*Net 1-383-4820

Eman

i have successfully recreated modulated dialtone using audacity

this is the 600 by 120 dialtone

http://goput.it/zeh.wav

Phonesrfun

That is excellent.  It is, in fact, the old dial tone!

-Bill G

GG



To my ears the 600 Hz component is a tad too loud and the 120 Hz component isn't quite loud enough.  Try increasing the 120 Hz component by 3 dB and see what happens.


GG



Very close.  Excellent in fact.  But the 120 Hz should still be a tad louder.  Sorry if I sound picky but I have eidetic audio which means photographic memory for sound.  I have a recording of that dialtone in my head, as well as the ones from when I was a kid (#5 Crossbar, #1ESS, and various Strowger machines).

bingster

Quote from: deedubya3800 on March 12, 2011, 12:17:44 PM
I remember that, long ago when I dialled a number, the dial tone didn't stop until that first digit was dialled. Of course, in the earpiece, one didn't hear the dial tone while the dial was turned, but once it returned to its original position, it would be audible just briefly and then stop;

I get my service through the cable company, and that's exactly the way it works for me, now.
= DARRIN =



deedubya3800

Okay, here is my attempt at creating it:

http://goput.it/3wa.wav

I've been sitting on this for a while. Let me know how I did.

Greg G.

Quote from: bingster on March 28, 2011, 12:07:43 AM
Quote from: deedubya3800 on March 12, 2011, 12:17:44 PM
I remember that, long ago when I dialled a number, the dial tone didn't stop until that first digit was dialled. Of course, in the earpiece, one didn't hear the dial tone while the dial was turned, but once it returned to its original position, it would be audible just briefly and then stop;

I get my service through the cable company, and that's exactly the way it works for me, now.

Does that for me on my POTS too (once I dial 9).
The idea that a four-year degree is the only path to worthwhile knowledge is insane.
- Mike Row
e

Greg G.

Quote from: deedubya3800 on June 02, 2011, 02:34:45 AM
Okay, here is my attempt at creating it:

http://goput.it/3wa.wav

I've been sitting on this for a while. Let me know how I did.

I like this one best, the others sound harsh.  I wish there was a way to get a "custom" dial tone.
The idea that a four-year degree is the only path to worthwhile knowledge is insane.
- Mike Row
e

deedubya3800

This one is more better. I created this one after visual analysis of other recordings of the old dial tone. Tell me if this one isn't just perfect:

http://goput.it/str/tzg.wav

DavePEI

Quote from: Phonesrfun on May 09, 2010, 04:39:35 PM
That post-war dial tone is a 600 Hz tone modulated by 120 Hz. 
This is the tone which my UK Strowger Demo will have. I was lucky enough to be able to buy a Lorain F1 generator which outputs this tone. The exchange the switches came from was activated in 1950, so this should be very close to the tones it used....

Dave
The Telephone Museum of Prince Edward Island:
http://www.islandregister.com/phones/museum.html
Free Admission - Call (902) 651-2762 to arrange a visit!
C*NET 1-651-0001

dsk

Here are my 1948 exchange dial tone, followed by dialing for external dial tone (my UK Panasonic 616) and again the POTS dial tone here in Norway.

You may notice the dialtone generator uses some time to start and stabilize when I go off hook. After the first digit dialed, the tone sounds for a short moment. Then the clicking and noise from the trunk, and then the Panasonic etc...

http://www.classicrotaryphones.com/forum/index.php?action=dlattach;topic=2657.0;attach=39042

dsk

TheGBC

#43
I found this thread tonight looking for tone recipes to put into my Obi110.
I accidentally figured out that to emulate modulation, you take the tone (600Hz), then subtract the modulation from it (120Hz), and plug that number (480) into the second tone when mixing in audacity or whichever. So to get Phonesrfun's post-war dialtone in audacity, mix 600 Hz with 480 Hz. At least, it sounds pretty close to me, coming out of the receiver on a weco 500. May have to play with the loudness of each tone.)
The OBi tone pattern I came up with is:
600-18,480-18;20

[EDIT]
OBi tone pattern for old ringback: 20+36;-1;(2+4)
(also not perfect, but close to recordings I've heard, sounds best on a real handset)


xhausted110

old dial tone in audacity: make 600 hertz. effects->tremolo put in 120 on the bottom box.
press repeat a few times. BAM! old dial tone.
- Evan