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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>MQ Spectral Editor</title>
<style>
body {
font-family: monospace;
margin: 20px;
background: #1a1a1a;
color: #ddd;
}
.toolbar {
margin-bottom: 10px;
padding: 10px;
background: #2a2a2a;
border-radius: 4px;
}
button {
background: #3a3a3a;
color: #ddd;
border: 1px solid #555;
padding: 8px 16px;
margin-right: 8px;
cursor: pointer;
border-radius: 4px;
}
button:hover { background: #4a4a4a; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
input[type="file"] { margin-right: 16px; }
.params {
display: inline-block;
margin-left: 20px;
}
label {
margin-right: 8px;
}
input[type="number"], select {
width: 80px;
background: #3a3a3a;
color: #ddd;
border: 1px solid #555;
padding: 4px;
border-radius: 3px;
}
#canvas {
border: 1px solid #555;
background: #000;
cursor: crosshair;
display: block;
margin-top: 10px;
}
#status {
margin-top: 10px;
padding: 8px;
background: #2a2a2a;
border-radius: 4px;
min-height: 20px;
}
.info {
color: #4af;
}
.warn {
color: #fa4;
}
.error {
color: #f44;
}
</style>
</head>
<body>
<h2>MQ Spectral Editor</h2>
<div class="toolbar">
<input type="file" id="wavFile" accept=".wav">
<button id="extractBtn" disabled>Extract Partials</button>
<div class="params">
<label>Hop:</label>
<input type="number" id="hopSize" value="256" min="64" max="1024" step="64">
<label>Threshold (dB):</label>
<input type="number" id="threshold" value="-60" min="-80" max="-20" step="5">
</div>
</div>
<canvas id="canvas" width="1400" height="600"></canvas>
<div id="tooltip" style="position: fixed; display: none; background: #2a2a2a; padding: 4px 8px; border: 1px solid #555; border-radius: 3px; pointer-events: none; font-size: 11px; z-index: 1000;"></div>
<div id="status">Load a WAV file to begin...</div>
<script src="fft.js"></script>
<script src="mq_extract.js"></script>
<script src="viewer.js"></script>
<script>
let audioBuffer = null;
let viewer = null;
const wavFile = document.getElementById('wavFile');
const extractBtn = document.getElementById('extractBtn');
const canvas = document.getElementById('canvas');
const status = document.getElementById('status');
const hopSize = document.getElementById('hopSize');
const threshold = document.getElementById('threshold');
const fftSize = 1024; // Fixed
// Load WAV file
wavFile.addEventListener('change', async (e) => {
const file = e.target.files[0];
if (!file) return;
setStatus('Loading WAV...', 'info');
try {
const arrayBuffer = await file.arrayBuffer();
const audioContext = new AudioContext();
audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
extractBtn.disabled = false;
setStatus(`Loaded: ${audioBuffer.duration.toFixed(2)}s, ${audioBuffer.sampleRate}Hz, ${audioBuffer.numberOfChannels}ch`, 'info');
// Create viewer
viewer = new SpectrogramViewer(canvas, audioBuffer);
} catch (err) {
setStatus('Error loading WAV: ' + err.message, 'error');
console.error(err);
}
});
// Extract partials
extractBtn.addEventListener('click', () => {
if (!audioBuffer) return;
setStatus('Extracting partials...', 'info');
extractBtn.disabled = true;
setTimeout(() => {
try {
const params = {
fftSize: fftSize,
hopSize: parseInt(hopSize.value),
threshold: parseFloat(threshold.value),
sampleRate: audioBuffer.sampleRate
};
const partials = extractPartials(audioBuffer, params);
setStatus(`Extracted ${partials.length} partials`, 'info');
// Update viewer
viewer.setPartials(partials);
} catch (err) {
setStatus('Extraction error: ' + err.message, 'error');
console.error(err);
}
extractBtn.disabled = false;
}, 50);
});
function setStatus(msg, type = '') {
status.innerHTML = msg;
status.className = type;
}
</script>
</body>
</html>
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