Audio Normalization
Aligns the loudness of multiple audio files to the same standard. Stops one podcast episode being far louder or quieter than the next.
What it does
Use this to bring podcast episodes to Spotify's standard, make sure every track in a music collection plays at the same level, or hit a professional broadcast level.
How to use
- Drag audio files into the list.
- Pick a Target Preset (easiest) or set a manual Target Loudness.
- Click Run.
You get one normalised copy per file at the chosen level.
Built-in presets
| Platform | LUFS |
|---|---|
| Spotify / YouTube | -14 LUFS |
| Apple Music / iTunes | -16 LUFS |
| Podcast Standard | -16 LUFS |
| TV Broadcast | -23 LUFS |
Lower LUFS (more negative) means quieter, higher LUFS means louder.
Manual target
The Target Loudness field accepts any value between -60.0 and 0.0, in 0.1 LUFS steps. Use it for your own standard.
Examples
Normalize podcast episodes for Spotify: Add the episodes, Spotify preset, run. They all end up at -14 LUFS.
Even out a music collection: Add the MP3s, Apple Music preset (-16 LUFS), run. Every track plays at the same loudness.
Broadcast TV audio: Add the broadcast files, TV Broadcast (-23 LUFS), run.
Custom standard: Add the files, type -18 LUFS manually, run.
Watch out
- Normalization does not change quality, it only adjusts the average level.
- Very low targets (around -30 LUFS) make audio hard to hear.
- Very high targets (around -6 LUFS) risk clipping/distortion.
- This is not a dynamic-range compressor, it only shifts the overall level.
- The music structure is preserved, loud sections are not pushed down.
License
Free tier has a monthly normalize cap. Office plan removes it.