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fix: show mic as dbL (not psi)

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Brian Harrison
2026-04-07 19:49:06 -04:00
parent 1a9dcc04b4
commit 8545daac04
1 changed files with 4 additions and 3 deletions
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sfm/sfm_webapp.html
+4 -3
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@@ -637,6 +637,7 @@ let eventList = [];
let currentEvent = 0; let currentEvent = 0;
let charts = {}; let charts = {};
let geoRange = 6.206; let geoRange = 6.206;
const DBL_REF = 2.9e-9; // 20 µPa in psi — reference pressure for dBL
const CHANNEL_COLORS = { Tran:'#58a6ff', Vert:'#3fb950', Long:'#d29922', Mic:'#bc8cff' }; const CHANNEL_COLORS = { Tran:'#58a6ff', Vert:'#3fb950', Long:'#d29922', Mic:'#bc8cff' };
// ── Helpers ──────────────────────────────────────────────────────────────────── // ── Helpers ────────────────────────────────────────────────────────────────────
@@ -945,7 +946,8 @@ function updatePeaksBar(ev) {
qs('pk-tran').textContent = pv.tran_in_s != null ? `${pv.tran_in_s.toFixed(5)} in/s` : '—'; qs('pk-tran').textContent = pv.tran_in_s != null ? `${pv.tran_in_s.toFixed(5)} in/s` : '—';
qs('pk-vert').textContent = pv.vert_in_s != null ? `${pv.vert_in_s.toFixed(5)} in/s` : '—'; qs('pk-vert').textContent = pv.vert_in_s != null ? `${pv.vert_in_s.toFixed(5)} in/s` : '—';
qs('pk-long').textContent = pv.long_in_s != null ? `${pv.long_in_s.toFixed(5)} in/s` : '—'; qs('pk-long').textContent = pv.long_in_s != null ? `${pv.long_in_s.toFixed(5)} in/s` : '—';
qs('pk-mic').textContent = pv.micl_psi != null ? `${pv.micl_psi.toExponential(3)} psi` : '—'; const micDbl = pv.micl_psi != null && pv.micl_psi > 0 ? 20 * Math.log10(pv.micl_psi / DBL_REF) : null;
qs('pk-mic').textContent = micDbl != null ? `${micDbl.toFixed(1)} dBL` : '—';
qs('pk-pvs').textContent = pv.peak_vector_sum != null ? `${pv.peak_vector_sum.toFixed(5)} in/s` : '—'; qs('pk-pvs').textContent = pv.peak_vector_sum != null ? `${pv.peak_vector_sum.toFixed(5)} in/s` : '—';
} }
@@ -1008,7 +1010,6 @@ function renderWaveform(data) {
Object.values(charts).forEach(c => c.destroy()); charts = {}; Object.values(charts).forEach(c => c.destroy()); charts = {};
const micPeakPsi = data.peak_values?.micl_psi ?? null; const micPeakPsi = data.peak_values?.micl_psi ?? null;
const DBL_REF = 2.9e-9;
for (const [ch, color] of Object.entries(CHANNEL_COLORS)) { for (const [ch, color] of Object.entries(CHANNEL_COLORS)) {
const samples = channels[ch]; const samples = channels[ch];
@@ -1031,7 +1032,7 @@ function renderWaveform(data) {
plotData = samples.map(s => s * micScale); plotData = samples.map(s => s * micScale);
const peakPsi = Math.max(...plotData.map(Math.abs)); const peakPsi = Math.max(...plotData.map(Math.abs));
const peakDbl = peakPsi > 0 ? 20 * Math.log10(peakPsi / DBL_REF) : -Infinity; const peakDbl = peakPsi > 0 ? 20 * Math.log10(peakPsi / DBL_REF) : -Infinity;
peakLabel = `${peakDbl.toFixed(1)} dBL (${peakPsi.toExponential(3)} psi)`; peakLabel = `${peakDbl.toFixed(1)} dBL`;
yUnit = 'psi'; yUnit = 'psi';
ttFmt = v => `${v.toExponential(3)} psi`; ttFmt = v => `${v.toExponential(3)} psi`;
tickFmt = v => v.toExponential(1); tickFmt = v => v.toExponential(1);