Correct audio metering and realtime displays

2026-07-22 10:50:15 +02:00
parent 97352ecfce
commit 2e868bfa3a
26 changed files with 999 additions and 903 deletions
@@ -0,0 +1,22 @@
+// Shared dBTP scale for every True-Peak presentation. The final 10% is kept
+// above 0 dBTP so intersample overloads remain measurable up to +6 dBTP.
+export const TRUE_PEAK_SCALE = Object.freeze([
+  { db: -60, frac: 0.0000 },
+  { db: -50, frac: 0.0336 },
+  { db: -40, frac: 0.1286 },
+  { db: -35, frac: 0.1901 },
+  { db: -30, frac: 0.2571 },
+  { db: -25, frac: 0.3466 },
+  { db: -20, frac: 0.4305 },
+  { db: -15, frac: 0.5478 },
+  { db: -10, frac: 0.6652 },
+  { db: -5, frac: 0.7826 },
+  { db: 0, frac: 0.9000 },
+  { db: +3, frac: 0.9500 },
+  { db: +6, frac: 1.0000 },
+]);
+
+export const TRUE_PEAK_MINOR_TICKS = Object.freeze([
+  -47, -19, -18, -17, -16, -14, -13, -12, -11, -9, -8, -7, -6, -4, -3, -2, -1,
+  +1, +2, +4, +5,
+]);