Spotify uses a loudness normalization algorithm that targets −14 LUFS integrated loudness with a −1 dBTP true peak ceiling. If your track is louder than −14 LUFS, Spotify will turn it down. If it’s quieter, Spotify may turn it up. Either way, your audio will arrive at listeners’ ears at approximately the same perceived volume as everything else on the platform.
This guide walks you through exactly what that means, why it matters, and how to hit the target every time using LoudFix.
Spotify’s Official Loudness Requirements
| Specification | Target |
|---|---|
| Integrated loudness | −14 LUFS |
| True peak maximum | −1 dBTP |
| Normalization direction | Up & down |
| Preferred format | FLAC 24-bit or WAV 24-bit |
Spotify normalizes both up and down, meaning quiet tracks get boosted and loud tracks get attenuated. The practical implication: there’s no benefit to mastering louder than −14 LUFS, and doing so will only introduce audible artifacts from over-compression.
Why Spotify’s −14 LUFS Standard Exists
Spotify introduced loudness normalization in 2013 specifically to end the loudness war on the platform. Before normalization, record labels competed to have the loudest-sounding track — which required extreme dynamic compression that reduced audio quality.
With normalization in place, listeners hear a consistent volume level no matter what they’re listening to. A dynamically mastered jazz album plays at the same perceived level as a maximally compressed EDM track. The difference is the jazz album sounds better because it doesn’t need to be crushed.
Spotify uses the ITU-R BS.1770-4 algorithm to measure integrated loudness — the same standard used by broadcast television (EBU R128 in Europe, ATSC A/85 in the US). It’s the most accurate perceptual loudness measurement currently in wide use.
Step 1: Export Your Final Mix
Before normalizing, make sure your final mix or master is export-ready:
- Export as WAV 24-bit or FLAC 24-bit at your session’s sample rate (44.1 kHz or 48 kHz are both fine)
- Don’t apply a limiter ceiling at 0 dBFS — leave headroom for the normalization step
- Don’t use peak normalization or a maximizer to make the file “loud” before normalizing
If you’re delivering via a distributor (DistroKid, TuneCore, CD Baby), they will deliver your file to Spotify. Some distributors automatically normalize, some don’t. Check their documentation to confirm.
Step 2: Upload to LoudFix
Open LoudFix in your browser — no installation needed. It processes everything locally in your browser using WebAssembly, so your audio never leaves your device.
- Drag and drop your exported audio file onto the upload zone
- LoudFix will immediately analyze your file and display the current integrated LUFS and true peak
You’ll see something like:
- Current LUFS: −10.2 LUFS
- Current true peak: −0.3 dBTP
- Target: Spotify preset (−14 LUFS / −1 dBTP)
Step 3: Select the Spotify Preset
Click the Spotify preset in LoudFix. This sets the target to:
- Integrated loudness: −14 LUFS
- True peak maximum: −1 dBTP
- Output format: FLAC 24-bit (recommended for Spotify)
LoudFix will calculate the exact linear gain adjustment needed to bring your file from its current LUFS to −14 LUFS. If the true peak would exceed −1 dBTP after gain adjustment, it applies intersample peak limiting at the ceiling.
Step 4: Download the Normalized File
Click Normalize and Download. LoudFix processes the file entirely in your browser and downloads the result.
Verify the output:
- The filename will indicate the LUFS target (e.g.,
mysong_spotify_-14lufs.flac) - The compliance panel will confirm the measured LUFS and true peak of the output file
The output file is now ready to upload to Spotify directly or deliver to your distributor.
What Happens If You Don’t Normalize?
If your track is louder than −14 LUFS: Spotify will apply a gain reduction before playback. A track mastered at −8 LUFS will be turned down by 6 dB. Your heavy limiting and compression artifacts will now be clearly audible at a quieter level. The dynamic range you sacrificed to get loud is gone, and the loudness gain is undone.
If your track is quieter than −14 LUFS: Spotify will boost it. A track at −20 LUFS will be boosted by 6 dB. Any samples near 0 dBFS will clip. Any noise floor will be amplified. Any dynamic inconsistencies will be magnified.
The correct approach: normalize to −14 LUFS before delivery, so Spotify’s algorithm has nothing to adjust.
Special Cases: Podcast vs. Music
If you’re uploading a podcast to Spotify Podcasts (now integrated into the main Spotify app), the target is still −14 LUFS for Spotify’s podcast hosting — but Apple Podcasts and most podcast hosting platforms use −16 LUFS.
If you’re distributing to both:
- Create a Spotify version at −14 LUFS
- Create an Apple Podcasts version at −16 LUFS
LoudFix supports both presets. You can normalize the same source file to both targets in one session.
Frequently Asked Questions
Does normalizing to −14 LUFS hurt audio quality? No — LoudFix applies only a linear gain change. This is mathematically lossless on 24-bit or 32-bit files. The only quality impact comes from re-encoding to a lossy format like MP3 or AAC, which is unavoidable for those formats.
Should I normalize before or after mastering? After. Your master should already have the desired dynamics, EQ, and processing applied. Normalization is the final step that scales the result to meet platform specs.
What format should I export for Spotify? FLAC 24-bit is ideal — lossless, with no encoding artifacts. Spotify accepts WAV, FLAC, MP3, and AAC. If your distributor requires MP3, normalize first then encode to MP3 (not the other way around).
Does Spotify normalize live radio or DJ mixes differently? Spotify normalizes all audio content using the same algorithm. Live mixes and DJ sets benefit from the same −14 LUFS target and −1 dBTP ceiling.
Summary
Normalizing for Spotify takes less than a minute with LoudFix:
- Export your final mix as WAV 24-bit
- Upload to LoudFix
- Select the Spotify preset (−14 LUFS / −1 dBTP)
- Download the normalized file
- Upload to Spotify or your distributor
Your audio will arrive at listeners’ ears sounding exactly as you intended — without Spotify’s algorithm making unexpected adjustments.