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 modern standard for measuring perceived loudness. Unlike peak meters, it accounts for how the human ear actually hears music.
Streaming platforms normalize all tracks to a target LUFS — so making your master louder just means the platform turns it down.
The three readings
- Integrated — average loudness across the whole track. The headline number.
- Short-term — last 3 seconds. Useful for spotting choruses vs verses.
- Momentary — last 400ms. Catches dynamic peaks.
True peak vs sample peak
dBTP accounts for what happens between samples when audio is converted to analogue. Modern masters target −1 dBTP to avoid clipping after lossy encoding.
Loudness Range (LRA)
LRA measures the dynamic range — the gap between the quietest and loudest sustained sections. Classical music: 15+. Modern pop: 4–8. Over-compressed: under 3.
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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