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Loudness Meter
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Accepted: MP3, WAV, M4A, FLAC, OGG, AAC, OPUS, AIFF, AMR, APE, MP4, MOV, MKV, AVI, WEBM, FLV, M4V
How to use Loudness Meter
- 1
Upload your audio or video file
Anything you want to measure.
- 2
Wait for the analysis
Runs at real time or faster.
- 3
Download the report
Plain text with LUFS, dBTP, and LU plus reference targets.
Frequently Asked Questions
- What does it measure?
- Integrated loudness (LUFS), true peak (dBTP), and loudness range (LU). These are the three metrics broadcast and streaming platforms care about.
- Does it produce a file?
- It produces a text report, not audio. Use Loudness Normalizer if you want an adjusted audio file.
- Why is my file louder than -14 LUFS?
- Modern masters often hit -9 or -10 LUFS. Spotify and YouTube will turn those down to -14 automatically — you lose headroom for nothing.
- What true peak is safe?
- -1 dBTP is the streaming industry recommendation.
- What about LRA?
- Loudness range measures dynamic spread. Speech is typically 4–9 LU, music 6–12 LU, classical up to 20 LU.
Measure Loudness Like a Broadcast Engineer
Every streaming platform uses loudness normalisation. Spotify targets -14 LUFS. Apple Podcasts targets -16 LUFS. YouTube targets -14 LUFS. If your file does not match, it gets turned up or down automatically — and you lose either headroom or dynamic range.
What You Get
- Integrated loudness (LUFS) — the average perceived loudness of the whole file.
- True peak (dBTP) — the highest signal peak, measured with intersample precision.
- Loudness range (LU) — how much dynamic spread the file has.
Reference Targets
- Spotify, YouTube, Amazon Music, Tidal — -14 LUFS
- Apple Podcasts, Apple Music — -16 LUFS
- General web streaming — -18 LUFS
- Broadcast television and radio (EBU R128) — -23 LUFS
Interpreting LRA
- 2–6 LU — very compressed, EDM and heavily processed pop.
- 6–12 LU — normal music and podcasts.
- 12–20 LU — classical, jazz, and dynamic recordings.
Next Step: Normalise
Once you know your file's loudness, use the Loudness Normalizer to bring it to the correct target. The two tools are designed to work together.
Privacy
Your unreleased mixes, client masters, and podcasts are analysed entirely in your browser. Nothing is uploaded.