Measure Loudness (LUFS), Every Reading: True Peak, LRA, Platforms

Every reading of the free Loudness Meter on a track about to be uploaded: -16.0 LUFS integrated (2 LU under Spotify’s -14), true peak -1.28 dBTP, a 15.4 LU loudness range, the loudness-over-time graph, and what each platform will do — Spotify, YouTube, Tidal and Amazon turn it up 2 dB (and it warns that pushes the peak past full scale), Apple Music leaves it alone. Then delivery targets that pass or fail (Podcast passes, EBU R128 does not), and the dual-mono setting on a mono voice: -10.4 on, -13.4 off. Nothing is uploaded.

The Loudness Meter, every reading, on a 20-second track about to be uploaded. Integrated loudness is -16.0 LUFS — 2 LU under Spotify’s reference of -14. Around it: true peak (-1.28 dBTP, the loudest moment between samples), loudness range (15.4 LU), the loudest momentary and short-term moments, and peak-to-loudness. The graph shows the loudness moving against the target. The platform table says what each service will do: Spotify, YouTube, Tidal and Amazon turn it up 2 dB, which pushes the peak past full scale; Apple Music leaves it alone; Deezer turns it up 1. Streaming references never reject anything; delivery targets pass or fail — Podcast (-16) passes, EBU R128 is 7 LU too loud. Measure mono as dual mono, on by default, adds 3 LU to a mono file the way two speakers do: a mono voice reads -10.4 with it, -13.4 without. Correct to target writes a corrected copy; every measurement exports as CSV or JSON. Free measures one file up to 50 MB and 15 minutes; Pro takes 25 files. Nothing is uploaded.