Audio Normalizer (LUFS Loudness)
Normalize loudness to broadcast and streaming targets — −14 LUFS for Spotify/YouTube, −16 for podcasts, −23 for EBU R128 — measured to the ITU-R BS.1770 standard.
How to use
- 1Add your audio and pick a target (or enter your own LUFS).
- 2See the measured loudness before and after, preview, then download.
How it's calculated
Integrated loudness uses K-weighting and 400 ms gated blocks (ITU-R BS.1770-4). Gain = target − measured; a limiter keeps true peaks below the ceiling.
Frequently asked questions
What is LUFS?
Loudness Units relative to Full Scale — a measure of perceived loudness used by streaming services and broadcasters.
Which target should I use?
Spotify and YouTube normalize around −14 LUFS, Apple Music −16, podcasts −16 (−19 mono), and EU broadcast −23 LUFS.
What's the difference from peak normalization?
Peak normalization matches the loudest sample; loudness normalization matches how loud it sounds, which is what listeners notice.