LUFS Meter
Drop a master, see LUFS-I, true peak, LRA, and platform targets.
Check how loud your master is before it hits streaming platforms. The LUFS analyzer shows integrated loudness, true peak, and loudness range so you can compare a master against practical delivery targets.
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WAV · MP3 · FLAC · AIFF · M4AWhat is LUFS?
LUFS (Loudness Units Full Scale) is the standard for measuring perceived loudness. Unlike peak meters, it weights frequencies the way the human ear does.
Streaming platforms normalise all tracks to a target LUFS — making your master louder just means the platform turns it down.
The three readings
- Integrated — average loudness across the whole track, doubly-gated per BS.1770.
- Short-term — 3-second window maximum. Shows the loudest section.
- Momentary — 400 ms window maximum. Catches transient peaks.
True peak vs sample peak
dBTP accounts for what happens between samples during D/A conversion. Target −1 dBTP to avoid clipping after lossy encoding. Analysis uses 2× oversampling.
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Frequently asked questions
- What is LUFS?
- LUFS stands for Loudness Units relative to Full Scale. It is the standard measurement for integrated loudness used by streaming platforms to normalise playback levels across tracks.
- What LUFS target should I aim for?
- Spotify and Apple Music normalise to around -14 LUFS integrated. YouTube normalises to around -14 LUFS. Masters above -14 LUFS will be turned down; masters well below it may sound quiet relative to others.
- What is true peak?
- True peak measures the peak level of a signal after digital-to-analogue conversion. Most streaming platforms set a -1 dBTP ceiling to prevent clipping on consumer devices.
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