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Guide · 4 min read

What Is LUFS

LUFS is how streaming platforms measure loudness. Learn what LUFS means, the targets for Spotify and Apple Music, and how to hit them without crushing your mix.

Plain-English definition, meter screenshots, streaming targets. Upload for pro master.

Table of Contents

1. The 60-Second Plain-English Definition

LUFS = Loudness Units relative to Full Scale
Think of it like “average volume” but weighted to how humans actually hear (bass = less loud, mids = more loud).
Integrated LUFS = whole song average
Short-Term LUFS = last 3 seconds (useful for ballads)
Target for streaming: -9 LUFS integrated-1 dBTP peakplatforms turn down, never up

2. LUFS vs. RMS vs. Peak: What’s the Difference? (Table)

MetricMeasuresHuman-Weighted?Use-Case
Peak dBFShighest sampleNoClip detection
RMSaverage powerNoOld-school loudness
LUFS Integratedaverage loudnessYes (ITU-R BS.1770)Streaming norm
LUFS Short-Term3-s windowYesBallad breath check

3. Why Spotify (and You) Care About LUFS

Stream -14 vs. -9 LUFS on the same song here.

4. How to Read a LUFS Meter (Screenshot Walk-Through)

Free tool: YouLean Loudness Meter 2
1. Insert on master bus
2. Set to “Integrated”
3. Play entire song once
4. Read the big white number, that’s your Integrated LUFS
5. Check “True-Peak”, must ≤ -1 dBTP
Screenshot example:
- Integrated: -8.9 LUFS
- Peak: -1.0 dBTP
- DR: 9 dB

5. Common Loudness Myths Busted

MythTruth
“Louder = better”Platforms turn down; dynamic range > loudness
“RMS is enough”RMS ignores ear-weighting; LUFS is closer to ears
“0 dBFS is safe”Inter-sample peaks > 0 dBFS = rejection
“-6 LUFS is pro”-6 LUFS often kills DR; -9 LUFS is sweet spot
“MP3 is fine for master”Upload WAV; platforms encode

6. Practical Takeaway: What Number Should You Hit?

Target master:
- Integrated LUFS: -9 (±1)
- True-Peak: -1 dBTP max
- Dynamic Range: ≥ 8 dB (use YouLean DR meter)
Result: Platforms turn down 3–5 dByou keep punchno clipsno skips.

7. FAQ: Short-Term, Integrated, dBTP, Apple

Q1. Short-term vs. integrated, do I watch both?
Integrated for final number; short-term helps ballad breaths.

Q2. Apple says -16 LUFS, should I master to -16?
No, master -9; Apple turns down 7 dByou keep transients.

Q3. dBTP vs. dBFS, difference?
dBTP = inter-sample peaks; dBFS = sample peaks; always watch dBTP.

Q4. Is -10 LUFS okay?
Yes, within 1 dB of target; platforms handle it.

Q5. Need Apple Digital Masters?
Included free when you upload for pro master here.

8. Ready to Nail the Target? Upload for Pro Master

  1. Export 24-bit WAV-12 dBFS peaksno master bus limiter
  2. Label “Mix Final”include instrumental if needed
  3. Upload hereMastering
  4. Approve 30-second master at -9 LUFS-1 dBTPDR ≥ 8 dB
  5. Download final WAV + Apple Digital Mastersrelease anywhere
Upload & Nail the Target

LUFS in Practice

Understanding LUFS is half the job; applying it across a release is where audio mixing and mastering experience shows. A professional mix mastering service reads these meters all day, if your numbers and your ears disagree, mixing and mastering services exist to settle the argument. Either way, mixing and mastering decisions should serve the song first, the meter second.

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