Offline morse code (CW) trainer based on Koch method. Inspired by the great LCWO.net
The tool is available to use online : [cw-trainer] . Save it for offline use by clicking on the "floppy" icon.
Just hit the "play" button and try to write the letters you copy. When the player stop click "verify". If your score is > 90% you can go to the next lesson.
You can use the tool online or click on the floppy disk icon to save it on your disk or smartphone, then you're free to practice anywhere without GSM coverage.
Start with lesson 1, adjust the tonality to your hearing preference, set the WPM to a value between 20 and 25 Words per minute and the Effective speed somewhere between 10 and the WPM speed. Relax, concentrate on your keyboard/paper and hit the "play" button. Try to write the letters you copy, don't try to decode already sent ones, just write the current symbol. When the player stops click "verify" ; If your score is > 90% you can go to the next lesson.
If it's too hard you can decrease the "Eff. WPM" to whatever you want. You can also increase the "extra word spacing" : it's a time in seconds wich is added to the natural space between words
There are 40 lessons consisting in letters/symbols and 6 additional lessons :
- Letters
- Numbers
- Symbols : 19 symbols (for the most part not included in Koch's lessons)
- Prosigns : common prosigns
- QSO : chunks of sample QSO, with randomly generated callsigns, RST...
- Free text : Randomly picked portions of Oliver Twist (by Charles Dickens, thanks to Project Gutenberg !)
Type the letter you just heard till success then prepare for the next one. Press space to hear again the current letter
Type a letter/symbol and it will be played in morse, displayed in dots and dashes and also spelled out loud in the current browser defined language (if your browser support speech synthesis. Note also that speech synthesis on Android/iOS doesn't work very well).
- space : pause ( ctrl-space if input has focus)
- left/right : fast forward/rewind ( ctrl-left/right if input has focus)
- end/home : fast fwd to start/end ( ctrl-end/home if input has focus)
- right click on play (long click on touch devices) to activate "Automatic start"
- double click on app's name to display symbols currently being played
The CWPlayer and MorsePlayer classes (defined in morseplayer.js) can be reused :
More infos here & samples here
<script src="morseplayer.js"></script>
<textarea id="cwtext" rows="4" cols="43" spellcheck="false">CQ CQ CQ DE F8XYZ K</textarea><br>
<input type="button" onclick="player.play(cwtext.value)" value="play">
<input type="button" onclick="player.pause()" value="pause">
<input type="button" onclick="player.stop()" value="stop">
<input type="button" onclick="player.WPM = 15" value="15 WPM">
<input type="button" onclick="player.WPM = 25" value="25 WPM">
<input type="button" onclick="player.EffWPM = 15" value="Eff 15 WPM">
<input type="button" onclick="player.EffWPM = 25" value="Eff 25 WPM">
<input type="button" onclick="player.Tone = 700" value="700 Hz">
<input type="button" onclick="player.Tone = 1500" value="1500 Hz">
<script>
var player = new CWPlayer();
// or specify options
//var player = new CWPlayer({'wpm': 25, 'effwpm': 12, 'tone': 1200});
// Utility function (static)
var translated = CWPlayer.translate("Bonjour");
console.log(translated);
// '-... --- -. .--- --- ..- .-.'
// Input text is cleaned :
player.Text = "StrÀngé ïnpùt tèxt";
console.log(player.Text);
// 'STRANGE INPUT TEXT'
</script>More infos here & samples here
<script src="morseplayer.js"></script>
<style>
#player2 {
width: 380px;
}
</style>
<morse-player id="player1" text="cq cq cq de F8XYZ" progressbar="false" predelay="2"></morse-player>
<morse-player id="player2" clearzone="true">this text is played in morse</morse-player>
<morse-player id="player3" wpm="25" effwpm="17" tone="1000" configbutton="false">this also</morse-player>