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Expand window function selector to 8 options

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Add Hamming, Bartlett, Gaussian, and Kaiser window options to the
live spectrum display. Previously only None, Hanning, Blackman-Harris,
and Flat Top were available. The new windows map to different visual
power-curve scalings in the render loop.

The window function only affects the realtime spectrum visualization,
not the static psychoacoustic analysis (which always uses Hanning).
This commit is contained in:
Armin 2026-07-06 18:09:24 +02:00
commit 210b4c2d3d
2 changed files with 9 additions and 5 deletions
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index.html
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@ -31,7 +31,7 @@
<button id="holdBtn" class="player-btn" title="Hold Max Cutoff">⊡</button>
<button id="resetBtn" class="player-btn" title="Reset Peaks">↺</button>
<span id="playTime" class="player-time">0:00.0 / 0:00.0</span>
<select id="windowSelect" class="window-select" title="Spectrum window function"><option value="none">None</option><option value="hanning" selected>Hanning</option><option value="blackman">Blackman-Harris</option><option value="flatTop">Flat Top</option></select>
<select id="windowSelect" class="window-select" title="Spectrum window function"><option value="none">None</option><option value="hanning" selected>Hanning</option><option value="hamming">Hamming</option><option value="blackman">Blackman-Harris</option><option value="bartlett">Bartlett</option><option value="gaussian">Gaussian</option><option value="kaiser">Kaiser</option><option value="flatTop">Flat Top</option></select>
</div>
<div class="chart-container" style="position:relative">
<canvas id="waveformChart"></canvas>