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[fix](trx-frontend): increase spectrum headroom and match heights

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Add 10 dB of spectrum headroom and keep the overview waterfall the same height as the spectrum plot.

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
Stan Grams
2026-03-01 10:14:22 +01:00
parent 626d5e2ec5
commit 740d678357
2 changed files with 7 additions and 5 deletions
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src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
+3 -2
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@@ -3118,7 +3118,8 @@ let spectrumPanFrac = 0.5;
// Y-axis level: floor = bottom dB value shown; range = total dB span.
let spectrumFloor = -115;
let spectrumRange = 80;
let spectrumRange = 90;
const SPECTRUM_HEADROOM_DB = 20;
const SPECTRUM_SMOOTH_ALPHA = 0.42;
// BW-strip drag state.
@@ -4073,7 +4074,7 @@ if (spectrumCanvas) {
const noise = sorted[Math.floor(sorted.length * 0.15)];
const peak = sorted[sorted.length - 1];
spectrumFloor = Math.floor(noise / 10) * 10 - 10;
spectrumRange = Math.max(60, Math.ceil((peak - spectrumFloor) / 10) * 10 + 10);
spectrumRange = Math.max(60, Math.ceil((peak - spectrumFloor) / 10) * 10 + SPECTRUM_HEADROOM_DB);
if (floorInput) floorInput.value = spectrumFloor;
scheduleSpectrumDraw();
});