Application Software for Morse Code
Listening and Sending Practice
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A1A_Breaker 242.zip 　Ver. 0.24.2

October 25th , 2023
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A1A Breaker 0293.zip　　Ver. 0.29.3 　
for Windows 11, 10, 8, 7 and XP.

August 1st, 2024

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お知らせ：　Vector にあった 「A1A　Breaker 公開後サポート情報」のページは１２月２０日に閉鎖されたため
こちらに　臨時移転をしました。　同じく Vector にあった　「CASL2 Visible Inside 公開後サポート情報」　の
ページも閉鎖されたため、　こちらに　臨時移転をしました。
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1. The generated Morse codes are almost free of key-clicks in sound. 
2. Adjustable dot, dash, spacing ratios 
3. Code Speed: 20 to 250 cpm (characters per minute)  
  4. Realtime and Accurate Speed Display:
　 Every time each character sounds, the measurement of the code speed is updated. 
  5. You can practise formal radio telegram message handlings.
　　Click on the following main menu items: Text --> Telegram Text 　Get 'Words' Radio Button checked, 　
　　and click on "OK" button, so two or three formal radio telegrams will be generated in a text form
　　and displayed at the left side of the Windows pane. And then you have only to click on "Run" button
　　to start receiving practice. 
　　SampleRadiogram1.wav <--
　  ６．　A1A Breaker is useful for HST(High Speed Telegraph) enthusiasts.
　　　A successive bursts of word-codes can be put out at random intervals.
　　　This function is controllable on a text mode with ease.
SampleHST1.wav <-- 158cpm (=47wpm(paris))　 1111Hz sinusoidal waveform
SampleHST2.wav <-- 222cpm (=67wpm(paris))　 1111Hz square waveform
SampleHST3.wav <-- 250cpm (=75wpm(paris))　 1500Hz sinusoidal waveform
　　　Sample Size=16-bit 　Sample Rate=44100Hz 
７．　Rapid generation of a sound-wave file:
　　　A variety of pcm-settings are available. For example, sample rate,
　　　sample size, channel, hard or soft keying sound waveform, and so on.
８．　Coherent Sound Mode has been implemented in full.


Tuesday, November 15th, 2011 
Saturday, February 6th, 2016 --> Friday, January 5th, 2018
@ Sunday, March 30th, 2025 <-- Friday, January 3rd, 2025


A1A Breaker works well on Windows XP, and the later OS's.

　　　　　　p

 --- A1A Breaker Setup ---
Let's get started by downloading and installing the software product, which is done
from the linked web-site above.
 
 [Downloads]
Click a link of the underlined A1A Breaker.zip, you will be redirected to a web-site of Vector.
The Vector is a well-known and reliable download-repository in Japan.

You need two steps to start downloading at Vector as follows:


　　　　　　　

　　　　　　　Figure 1. 　Step 1 at Vector.




　　　　　　　

　　　　　　　Figure 2. 　Step 2 at Vector.

 [Installation]
After unzipping, paste a folder of A1A Breaker at any place you like.

On Windows 7, 8, 10 and 11, it would be better for you to save the A1A Breaker
in one of the user's folders, such as "Documents", "Downloads", "Videos",
or "Saved Games."

Don't put your A1A Breaker into any folder under the "Program Files"
or "Program Files (x86)" on Windows 7, 8, 10 and 11. 　
Because UAC (User Account Control) might block its execution.

A1ABreaker.exe does not need registry-entries.
 
 [Uninstallation]
Remove your A1A Breaker directory and all its subdirectories from your PC.
Uninstalling is as simple as erasing a folder.
-
[To unblock to avoid security warnings on Windows 7, 8, 10 and 11]
Click on an icon of A1ABreaker.exe with your right-mouse,
and go to --> Property --> General Tab --> Unblock --> Apply.

"A1A Breaker JPN Help.chm" is a help file.
Click on an icon of "A1A Breaker JPN Help.chm" with your right-mouse,
and go to --> Property --> General Tab --> Unblock --> Apply.

Unless unblocked, it would only display empty help pages.


　　　　 　　　

You can choose either English or Japanese as a display language. 
 
 [How to change a display language of A1A Breaker.]
(1) 　Execute A1ABreaker.exe by double-clicking on the icon with your left-mouse.
　At the very first execution, a new file of A1ABreaker.conf is automatically generated
　in a folder where A1ABreaker.exe exists.
(2) 　Close the A1ABreaker.exe just after the execution. 　Otherwise,
　　　 the following change would not come into effect.
(3) 　A1ABreaker.conf is a simple text file, and the extension is .conf.
　　　 Open the A1ABreaker.conf with a simple text editor such as Notepad.
(4)  Find a line of Lang=J or Lang=N in the conf file.
(5)  Rewrite it as follows: Lang=Eng
　　　 Note that this is case-sensitive.
(6) 　Save the A1ABreaker.conf as the same name, that is, overwrite the previous A1ABreaker.conf.
　　　　Save it in ANSI character code. Do not use any Unicode character code.
(7) 　Execute A1ABreaker.exe once again.
(8) 　Most of the captions and messages of the A1ABreaker will be displayed in English.　(Figure 3.)


　　　

　　　Figure 3. 　A1A Breaker on Windows 7, x64, U.S. Edition.

A1A Breaker is a non-Unicode program.
It uses Shift_JIS(Japanese Industrial Standards) character set. 
 
 [To set Pitch of Tone]
You can practice Morse code in two tones as well as in a single tone.
Try to input two frequencies by the unit of Hertz in the "Pitch of Tone"
Edit Box as follows: 880 / 440.

　　　　　　　

So the A1A Breaker generates the sound data of 880 Hz and 440 Hz in a sinusoidal waveform,
　　　　　and then makes a linear superposition of them with the same amplitude.
　　　　　The A1A Breaker sounds two tones of 880 Hz and 440 Hz.
　　　　　This will keep you from a monotonous listening practice in a single tone. 
 
[To start a practice]
A1A Breaker sounds Morse code one by one while reading a text in the editor
　　　　　at the left side of the main form of the A1A Breaker.
When you press a button of Start or a key of F2, the A1A Breaker starts sounding the codes.
　　　　　While listening to the codes, you are expected to write down the received letters
　　　　　on a sheet of paper. 　You may type the copied letters one by one with Notepad.
[Unknown characters]
The unknown characters means all the characters that are of no use in Morse Code.
　　　　　They are *, #, <, >, !, | , and so on. The A1A Breaker regards each of them as a space.

For example,
　　　　　"Some asterisks ******** are often used in place of a password."
　　　　　There are eight *'s in it, which are unknown characters.
　　　　　So the A1A Breaker interprets the text as follows:
　　　　　"Some asterisks　　are often used in place of a password."


 [Compression of Spaces]
 The A1A Breaker compresses a succession of spaces into one space while reading a text.
For example,
"The light     emitted by a TV set     makes a good stroboscope."

The A1A Breaker sounds as follows:
"The light emitted by a TV set makes a good stroboscope."
 
The succession of spaces between the word of "light" and the word of "emitted" in the text
has been compressed into one space. Another train of spaces between "set" and "makes"
has been also compressed into one space.
For another example previously described,
"Some asterisks ******** are often used in place of a password."
"Some asterisks 　　　　　　　ane often used in place of a password."
The A1A Breaker sounds as follows:
"Some asterisks are often used in place of a password."
The train of spaces between "asterisks" and "are" has been compressed into one space.
[Convenient Macros 1]
When the A1A Breaker finds out a <BT> in the text editor, it sounds dah-di-di-di-dah as a double dash.
Don't put any spaces between a pair of angle brackets such as < BT> or <B T> or <BT >.
Because the A1A Breaker does not recognize them as a double dash of <BT>.
How does the A1A Breaker interprets them?
The A1A Breaker reads each of the brackets as an unknown character,
and it replaces each of them with a space. As a result,
the A1A Breaker sounds BT or B T each in place of a double-dash.
This rule is applied to <HH>, <AR>, <KN>, <BK>, <VA>, and so on.
 This rule is true in the following abbreviated numerals.
 
 [Abbreviated Numerals]
<1>
<2>
<3>
...
<8>
<9>
<0>		 --->
--->
--->
...
--->
--->
--->		 di-daah
di-di-daah
di-di-di-daah
...
daah-di-dit
daah-dit
daah

The daah means a long dash, which sounds twice as long as a usual dash in time duration.

 [Convenient Macros 2]
When the A1A Breaker finds out a <sp1sec> in the text editor,
it sounds for one second with zero amplitude, that is, it sounds none for a second.
It is only the phase of the sound which advances inside of the A1A Breaker.

The <sp1sec> means <space 1 second>, and it gives you a space for one second.
<sp2sec> means <space 2 seconds>, and it gives you a space for two seconds.
<sp3sec> means <space 3 seconds>, and it gives you no sound of three second's duration.
<sp4sec> means <space 4 seconds>, and it gives you no sound for four seconds.
<sp5sec> means <space 5 seconds>, and it gives you no sound for five seconds. 
 
 [To comment a whole line or partial line.]
 The A1A Breaker ignores all characters between two forward slashes(//) and the last end
of the line. And it sounds none.
All of the characters this application ignores is called a comment.
[To comment more than one line.]

The A1A Breaker ignores all characters between /* and */ in a text while it sounds codes.
All of the characters ignored in this way is called a comment.
The comment starts with /* and ends with */ as in C/C++ programming language.

There is a sample file of qsoOubun.txt in a folder of A1A Breaker.
Open the text, and click on a button of Start or press F2 key with a sound audio amplifier on,
you will get to understand how well the A1A Breaker works under the rules.

Open a sample file of qsoWabun.txt and try it, if you are good at Japanese Morse Code.
The qsoWabun.txt is a sample of qso in Japanese Morse Code.
You will get to know how well the A1A Breaker deals with both /* and */ .


You can practice formal radio telegram handlings. 　
Click on the following menu items: Text -> Telegram.Text 　
Get 'Words Radio Button' checked. 　Click on OK button.

　　　　　


　　　　　

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 [Experimental Demo]
The A1A Breaker has already gotten a PCM sound engine inside.
I am planning to add a few functions to it in the future for its user to perform
　　some experiments on his desktop PC.
 
 [Desktop Experiment]

Here are some simple experiments with using the A1A Breaker and a clock in daily use.
They will show you that 0.1 in the last digit of 1000.1 Hz is effective.

You might say that 0.1 in the last digit is uncertain. It is true in a sense.
What I am going to do here is to tell something certain from what are called uncertain. *
[Experimental Target]
To make sure that the A1A Breaker sounds a tone of 1000.1 Hz.
[Physical Principle of this Experiment]

If two tuning forks with frequencies 1000 Hz and 1001 Hz are struck equally soft at the same time,
　there is every second a rise and fall of sound corresponding to the coincidence or opposition
　of their vibrations.
This phenomenon is called beats. The number of beats heard in a second is equal to the difference
　of the frequencies of the tones. This relationship between two tones is useful for determining
　relative frequencies and absolute ones of the vibrating bodies.
[Preparatory Settings]

1. Double-click an icon of the A1A Breaker.exe to execute.
2. Get the Tone radio-button checked in theTone and WaveformCheck-Box of the A1A Breaker.
3. Click the Run menu item, and then click the PCMmenu item
　　to open the PCM(Pulse Code Modulation) Settings form.
4. Set (Channel, Sample Size, Sample Rate) = (Mono, 16-bit, 44.1 KHz). Press the OK button.
5. We need a clock to measure time: a wristwatch or an alarm clock.
[Experiment 1] ...
[Experiment 2]

1. Input 1000 / 1001 (Hz) into the Frequency Edit Box of the A1A Breaker.
2. Click on a button of Start with an audio amplifier on,
the A1A Breaker will start to sound a note which is composed of the two tones.

We should hear the total sound as two separate tones with slightly different pitches.
However our brains and ears no longer recognize them as different tones
because of their small difference in pitch.
We do not hear them as a note made up of the two tones,
but rather as a single tone with a rapidly varying amplitude one time every second.
Therefore we get to know that the A1A Breaker is surely sounding two tones
of which their pitches differ by 1-Hz.

Their beat frequency is one Hertz, which is easily detectable.
[Experiment 3]

1. Input 1000.0 / 1000.1 (Hz) into the Frequency Edit Box of the A1A Breaker.
2. Click on a button of Start with an audio amplifier on,
the A1A Breaker will start to sound a note which consists of the two tones.

There occurs every ten seconds a rise and fall of sound corresponding to the coincidence
and opposition of their sound wave vibrations.
So their beat frequency is zero point one Hertz, which is easily detectable.

[The results] ...
[Additional Home Experiment]
To make sure that the A1A Breaker has an ability of sounding a tone of 1000.01 Hz.

1. Input 1000.00 / 1000.01 (Hz) into the Frequency Edit Box
　　at the upper right side of the A1A Breaker.
2. Click on a button of Start with an audio amplifier on,
　　the A1A Breaker will start to sound the two tones.
[Physical Prediction]

There will occur every one hundred seconds a rise and fall of sound
corresponding to the coincidence and opposition of their sound wave vibrations.
The phase of silence, corresponding to antagonism of equal and opposite vibrations,
will be extreamly well marked.

So their beat frequency is zero point zero one Hertz, which is easily detectable.

--------------------------------------

 [Utility]
The A1A Breaker has a feature of generating a sound-wave file for cw practice.
iTunes 7(Apple Computer Inc.) could convert it into a MP3 sound file. 　

So you can learn Morse codes with iPod anytime, anywhere such as in a commuter train.

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Let's take a five minute break here when you get tired of code practice.

Japan Video Clips in English at a web site of the Ministry of Foreign Affairs of Japan

I have recently found this web site in a newspaper article.
It seems to me there is not any exaggeration in the vide contents.

http://www.mofa.go.jp/index.html

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[Note]
This software is provided by the author on an "AS IS" basis and any express or implied warranties are disclaimed.
In no event shall the author be liable for any direct, indirect, incidental, special, exemplary, or consequential damages
caused in any way out of the use of this software.

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