Author Topic: Old dial tone  (Read 26006 times)

Offline Adam

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Re: Old dial tone
« Reply #30 on: March 12, 2011, 03:20:09 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!  :-)
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Offline Eman

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Re: Old dial tone
« Reply #31 on: March 12, 2011, 03:39:41 PM »
i have successfully recreated modulated dialtone using audacity

this is the 600 by 120 dialtone

http://goput.it/zeh.wav

Offline Phonesrfun

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Re: Old dial tone
« Reply #32 on: March 12, 2011, 03:46:30 PM »
That is excellent.  It is, in fact, the old dial tone!

-Bill G

Offline GG

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Re: Old dial tone
« Reply #33 on: March 26, 2011, 03:56:34 AM »


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.

Offline Eman

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Re: Old dial tone
« Reply #34 on: March 26, 2011, 01:03:04 PM »
Hows this one sound?

http://goput.it/fke.wav

Offline GG

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Re: Old dial tone
« Reply #35 on: March 26, 2011, 10:17:19 PM »


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).

Offline bingster

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Re: Old dial tone
« Reply #36 on: March 28, 2011, 12:07:43 AM »
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 =



Offline deedubya3800

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Re: Old dial tone
« Reply #37 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.

Offline Brinybay

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Re: Old dial tone
« Reply #38 on: June 02, 2011, 05:46:31 AM »
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).
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Offline Brinybay

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Re: Old dial tone
« Reply #39 on: June 02, 2011, 05:47:45 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.
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Offline deedubya3800

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Re: Old dial tone
« Reply #40 on: June 02, 2011, 03:40:04 PM »
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

Offline DavePEI

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Re: Old dial tone
« Reply #41 on: August 12, 2012, 11:30:18 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....

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Offline dsk

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Re: Old dial tone
« Reply #42 on: August 13, 2012, 07:30:33 AM »
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

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Offline TheGBC

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Re: Old dial tone
« Reply #43 on: April 15, 2013, 08:20:36 AM »
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)

« Last Edit: April 15, 2013, 08:19:34 PM by TheGBC »
I don't always fix 50 year old telephone dials, but when I do, I prefer Automatic Electric.

Offline xhausted110

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Re: Old dial tone
« Reply #44 on: April 15, 2013, 08:22:13 PM »
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

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