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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Spectral Brush Editor</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div id="app">
<!-- Header -->
<header>
<h1>Spectral Brush Editor</h1>
<div class="header-controls">
<button id="loadWavBtn" class="btn-primary">Load .wav/.spec</button>
<input type="file" id="fileInput" accept=".wav,.spec" style="display:none">
<span id="fileInfo" class="file-info"></span>
</div>
</header>
<!-- Main content area -->
<div class="main-content">
<!-- Canvas area (left side, 80% width) -->
<div class="canvas-container">
<canvas id="spectrogramCanvas"></canvas>
<div id="canvasOverlay" class="canvas-overlay">
<p>Load a .wav or .spec file to begin</p>
<p class="hint">Click "Load .wav/.spec" button or press Ctrl+O</p>
</div>
</div>
<!-- Toolbar (right side, 20% width) -->
<div class="toolbar">
<h3>Curves</h3>
<button id="addCurveBtn" class="btn-toolbar" title="Add new curve">
<span class="icon">+</span> Add Curve
</button>
<button id="deleteCurveBtn" class="btn-toolbar btn-danger" title="Delete selected curve" disabled>
<span class="icon">×</span> Delete
</button>
<div id="curveList" class="curve-list"></div>
</div>
</div>
<!-- Control panel (bottom) -->
<div class="control-panel">
<!-- Left section: Profile controls -->
<div class="control-section">
<label for="profileType">Profile:</label>
<select id="profileType" class="select-input">
<option value="gaussian">Gaussian</option>
<option value="decaying_sinusoid">Decaying Sinusoid</option>
<option value="noise">Noise</option>
</select>
<label for="sigmaSlider" id="sigmaLabel">Sigma:</label>
<input type="range" id="sigmaSlider" class="slider" min="1" max="100" value="30" step="0.1">
<input type="number" id="sigmaValue" class="number-input" min="1" max="100" value="30" step="0.1">
</div>
<!-- Middle section: Curve selection -->
<div class="control-section">
<label for="curveSelect">Active Curve:</label>
<select id="curveSelect" class="select-input">
<option value="-1">No curves</option>
</select>
</div>
<!-- Right section: Playback controls -->
<div class="control-section playback-controls">
<button id="playProceduralBtn" class="btn-playback" title="Play procedural sound (Key 1)">
<span class="icon">▶</span> <kbd>1</kbd> Procedural
</button>
<button id="playOriginalBtn" class="btn-playback" title="Play original .wav (Key 2)" disabled>
<span class="icon">▶</span> <kbd>2</kbd> Original
</button>
<button id="stopBtn" class="btn-playback" title="Stop playback (Space)">
<span class="icon">■</span> <kbd>Space</kbd> Stop
</button>
</div>
</div>
<!-- Bottom action bar -->
<div class="action-bar">
<div class="action-group">
<button id="undoBtn" class="btn-action" title="Undo (Ctrl+Z)" disabled>
<span class="icon">↶</span> Undo
</button>
<button id="redoBtn" class="btn-action" title="Redo (Ctrl+Shift+Z)" disabled>
<span class="icon">↷</span> Redo
</button>
</div>
<div class="action-group">
<button id="saveParamsBtn" class="btn-action" title="Save procedural_params.txt (Ctrl+S)">
<span class="icon">💾</span> Save Params
</button>
<button id="generateCodeBtn" class="btn-action" title="Generate C++ code (Ctrl+Shift+S)">
<span class="icon">📝</span> Generate C++
</button>
</div>
<div class="action-group">
<button id="helpBtn" class="btn-action" title="Show keyboard shortcuts (?)">
<span class="icon">?</span> Help
</button>
</div>
</div>
</div>
<!-- Help modal (hidden by default) -->
<div id="helpModal" class="modal" style="display:none">
<div class="modal-content">
<span class="modal-close" id="closeHelpModal">×</span>
<h2>Keyboard Shortcuts</h2>
<table class="shortcuts-table">
<tr><th>Key</th><th>Action</th></tr>
<tr><td><kbd>1</kbd></td><td>Play procedural sound</td></tr>
<tr><td><kbd>2</kbd></td><td>Play original .wav</td></tr>
<tr><td><kbd>Space</kbd></td><td>Stop playback</td></tr>
<tr><td><kbd>Delete</kbd></td><td>Delete selected control point</td></tr>
<tr><td><kbd>Esc</kbd></td><td>Deselect all</td></tr>
<tr><td><kbd>Ctrl+Z</kbd></td><td>Undo</td></tr>
<tr><td><kbd>Ctrl+Shift+Z</kbd></td><td>Redo</td></tr>
<tr><td><kbd>Ctrl+S</kbd></td><td>Save procedural_params.txt</td></tr>
<tr><td><kbd>Ctrl+Shift+S</kbd></td><td>Generate C++ code</td></tr>
<tr><td><kbd>Ctrl+O</kbd></td><td>Open file</td></tr>
<tr><td><kbd>?</kbd></td><td>Show this help</td></tr>
</table>
<h3>Mouse Controls</h3>
<ul>
<li><strong>Click</strong> on canvas: Place control point</li>
<li><strong>Drag</strong> control point: Adjust position (frame, frequency, amplitude)</li>
<li><strong>Right-click</strong> control point: Delete</li>
</ul>
</div>
</div>
<!-- Scripts -->
<script src="dct.js"></script>
<script src="script.js"></script>
</body>
</html>
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