20 WPM
J’ai effectué quelques modifications supplémentaires par rapport aux versions précédentes.
Le curseur pour le volume
les boutons marche – stop
Le code
<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta name="author" content="F4HXN">
<meta name="description" content="Générateur de Code Morse">
<meta name="copyright" content="Libre de droits">
<title>Générateur de Code Morse</title>
<style>
body {
font-family: Arial, sans-serif;
background-color: #f0f0f0;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
margin: 0;
padding: 20px;
box-sizing: border-box;
}
.container {
background-color: white;
padding: 2rem;
border-radius: 10px;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
max-width: 600px;
width: 100%;
}
h1 {
color: #333;
text-align: center;
}
textarea {
width: 100%;
height: 100px;
margin-bottom: 1rem;
padding: 0.5rem;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
}
#output {
font-family: monospace;
font-size: 1.2rem;
background-color: #eee;
padding: 1rem;
border-radius: 4px;
white-space: pre-wrap;
word-break: break-all;
margin-bottom: 1rem;
}
button {
background-color: #4CAF50;
border: none;
color: white;
padding: 10px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
border-radius: 4px;
}
#stopButton {
background-color: #f44336;
}
.control {
margin-top: 1rem;
}
.control label {
display: block;
margin-bottom: 0.5rem;
}
.control input {
width: 100%;
}
</style>
</head>
<body>
<div class="container">
<h1>Générateur de code Morse</h1>
<textarea id="input" placeholder="Entrer le texte à convertir en code Morse"></textarea>
<div id="output"></div>
<button id="playButton">Lecture Code Morse</button>
<button id="stopButton">Stop</button>
<div class="control">
<label for="volumeControl">Volume</label>
<input type="range" id="volumeControl" min="0" max="1" step="0.1" value="0.5">
</div>
<div class="control">
<label for="speedControl">Vitesse (WPM)</label>
<input type="range" id="speedControl" min="5" max="50" step="1" value="20">
<span id="speedValue">20 WPM</span>
</div>
</div>
<script>
const morseCode = {
'A': '.-', 'B': '-...', 'C': '-.-.', 'D': '-..', 'E': '.', 'F': '..-.',
'G': '--.', 'H': '....', 'I': '..', 'J': '.---', 'K': '-.-', 'L': '.-..',
'M': '--', 'N': '-.', 'O': '---', 'P': '.--.', 'Q': '--.-', 'R': '.-.',
'S': '...', 'T': '-', 'U': '..-', 'V': '...-', 'W': '.--', 'X': '-..-',
'Y': '-.--', 'Z': '--..', '0': '-----', '1': '.----', '2': '..---',
'3': '...--', '4': '....-', '5': '.....', '6': '-....', '7': '--...',
'8': '---..', '9': '----.', '.': '.-.-.-', ',': '--..--', '?': '..--..',
"'": '.----.', '!': '-.-.--', '/': '-..-.', '(': '-.--.', ')': '-.--.-',
'&': '.-...', ':': '---...', ';': '-.-.-.', '=': '-...-', '+': '.-.-.',
'-': '-....-', '_': '..--.-', '"': '.-..-.', '$': '...-..-', '@': '.--.-.',
' ': ' '
};
function textToMorse(text) {
return text.toUpperCase().split('').map(char => morseCode[char] || char).join(' ');
}
const input = document.getElementById('input');
const output = document.getElementById('output');
const playButton = document.getElementById('playButton');
const stopButton = document.getElementById('stopButton');
const volumeControl = document.getElementById('volumeControl');
const speedControl = document.getElementById('speedControl');
const speedValue = document.getElementById('speedValue');
input.addEventListener('input', () => {
const text = input.value;
const morse = textToMorse(text);
output.textContent = morse;
});
const audioContext = new (window.AudioContext || window.webkitAudioContext)();
const gainNode = audioContext.createGain();
gainNode.connect(audioContext.destination);
volumeControl.addEventListener('input', () => {
gainNode.gain.setValueAtTime(volumeControl.value, audioContext.currentTime);
});
speedControl.addEventListener('input', () => {
speedValue.textContent = `${speedControl.value} WPM`;
});
let isPlaying = false;
let stopPlayback = false;
function playMorseCode(morse) {
if (isPlaying) return;
isPlaying = true;
stopPlayback = false;
const wpm = parseInt(speedControl.value);
const dotDuration = 1.2 / wpm;
const dashDuration = dotDuration * 3;
const pauseDuration = dotDuration;
const frequency = 700;
let startTime = audioContext.currentTime;
function scheduleNextTone(index) {
if (index >= morse.length || stopPlayback) {
isPlaying = false;
return;
}
const char = morse[index];
if (char === '.') {
playTone(frequency, startTime, dotDuration);
startTime += dotDuration + pauseDuration;
} else if (char === '-') {
playTone(frequency, startTime, dashDuration);
startTime += dashDuration + pauseDuration;
} else if (char === ' ') {
startTime += 3 * pauseDuration;
}
setTimeout(() => scheduleNextTone(index + 1), (startTime - audioContext.currentTime) * 1000);
}
scheduleNextTone(0);
}
function playTone(frequency, startTime, duration) {
const oscillator = audioContext.createOscillator();
oscillator.type = 'sine';
oscillator.frequency.setValueAtTime(frequency, startTime);
oscillator.connect(gainNode);
oscillator.start(startTime);
oscillator.stop(startTime + duration);
}
playButton.addEventListener('click', () => {
const text = input.value;
const morse = textToMorse(text);
playMorseCode(morse);
});
stopButton.addEventListener('click', () => {
stopPlayback = true;
});
// Initialize the display
input.dispatchEvent(new Event('input'));
</script>
</body>
</html>