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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Сравнение аудиофайлов</title>
<script src="https://cdn.jsdelivr.net/npm/wavesurfer.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<style>
body { font-family: Arial, sans-serif; text-align: center; }
.waveform-container { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.waveform { width: 80%; }
.waveform div { height: 150px; cursor: pointer; }
.chart-container { width: 80%; margin: auto; }
.audio-controls { margin-top: 20px; }
</style>
</head>
<body>
<h2>Сравнение двух аудиофайлов</h2>
<p>Нажмите <strong>1</strong> для воспроизведения первого трека, <strong>2</strong> для второго.</p>
<input type="file" id="file1" accept="audio/*" onchange="updateLabel(1)">
<input type="file" id="file2" accept="audio/*" onchange="updateLabel(2)">
<button onclick="analyzeAudio()">Анализировать</button>
<div class="waveform-container">
<div class="waveform">
<h3 id="track1-label">Файл 1</h3>
<div id="waveform1"></div>
<p id="time1">Время: 0:00</p>
<p id="rms1">RMS: -</p>
<p id="lufs1">LUFS: -</p>
<button onclick="playAudio(1)" style="font-size: 2em;">▶️/⏸</button>
</div>
<div class="waveform">
<h3 id="track2-label">Файл 2</h3>
<div id="waveform2"></div>
<p id="time2">Время: 0:00</p>
<p id="rms2">RMS: -</p>
<p id="lufs2">LUFS: -</p>
<button onclick="playAudio(2)" style="font-size: 2em;">▶️/⏸</button>
</div>
</div>
<canvas id="histogramChart"></canvas>
<canvas id="spectrumChart"></canvas>
<script>
let wavesurfer1, wavesurfer2;
document.addEventListener('keydown', function(event) {
if (event.key === '1') {
playAudio(1);
} else if (event.key === '2') {
playAudio(2);
}
});
function updateLabel(track) {
const fileInput = document.getElementById(`file${track}`);
const label = document.getElementById(`track${track}-label`);
label.textContent = fileInput.files[0] ? fileInput.files[0].name : `Файл ${track}`;
}
function analyzeAudio() {
const file1 = document.getElementById('file1').files[0];
const file2 = document.getElementById('file2').files[0];
if (!file1 || !file2) {
alert('Выберите два аудиофайла!');
return;
}
wavesurfer1 = WaveSurfer.create({ container: '#waveform1', waveColor: 'blue', progressColor: 'darkblue', height: 150 });
wavesurfer2 = WaveSurfer.create({ container: '#waveform2', waveColor: 'red', progressColor: 'darkred', height: 150 });
const url1 = URL.createObjectURL(file1);
const url2 = URL.createObjectURL(file2);
wavesurfer1.load(url1);
wavesurfer2.load(url2);
wavesurfer1.on('seek', syncSeek);
wavesurfer2.on('seek', syncSeek);
wavesurfer1.on('audioprocess', () => updateTime(1));
wavesurfer2.on('audioprocess', () => updateTime(2));
calculateLoudness(file1, 'rms1', 'lufs1');
calculateLoudness(file2, 'rms2', 'lufs2');
}
function playAudio(track) {
let otherWavesurfer = track === 1 ? wavesurfer2 : wavesurfer1;
let currentWavesurfer = track === 1 ? wavesurfer1 : wavesurfer2;
let currentTime = otherWavesurfer.getCurrentTime();
otherWavesurfer.pause();
currentWavesurfer.seekTo(currentTime / currentWavesurfer.getDuration());
currentWavesurfer.playPause();
}
function syncSeek() {
let time1 = wavesurfer1.getCurrentTime();
let time2 = wavesurfer2.getCurrentTime();
let avgTime = (time1 + time2) / 2;
wavesurfer1.seekTo(avgTime / wavesurfer1.getDuration());
wavesurfer2.seekTo(avgTime / wavesurfer2.getDuration());
}
function updateTime(track) {
let wavesurfer = track === 1 ? wavesurfer1 : wavesurfer2;
let timeElement = document.getElementById(`time${track}`);
let currentTime = wavesurfer.getCurrentTime();
timeElement.textContent = `Время: ${formatTime(currentTime)}`;
}
function formatTime(seconds) {
const minutes = Math.floor(seconds / 60);
const secs = Math.floor(seconds % 60);
return `${minutes}:${secs < 10 ? '0' : ''}${secs}`;
}
function calculateLoudness(file, rmsElementId, lufsElementId) {
const reader = new FileReader();
reader.readAsArrayBuffer(file);
reader.onload = function(event) {
const audioContext = new (window.AudioContext || window.webkitAudioContext)();
audioContext.decodeAudioData(event.target.result, function(buffer) {
let data = buffer.getChannelData(0);
let sum = 0;
for (let i = 0; i < data.length; i++) {
sum += data[i] * data[i];
}
let rms = Math.sqrt(sum / data.length);
document.getElementById(rmsElementId).textContent = `RMS: ${rms.toFixed(6)}`;
let lufs = 20 * Math.log10(rms);
document.getElementById(lufsElementId).textContent = `LUFS: ${lufs.toFixed(2)}`;
});
};
}
</script>
</body>
</html>
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