One-page reference: peak vs RMS vs LUFS, the LUFS/LKFS/LU distinction, the three meter windows (M/S/I), how ITU-R BS.1770 computes LUFS (K-weighting + gating), LRA, True Peak (dBTP), and the numbers worth memorising (-23 LUFS, -24 LKFS, -1 dBTP).
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