MIDI, formats and standards · updated 2026-08-16

LOUDNESS NORMALISATION

Platforms play everything back at a target loudness, so a louder master mostly just gets turned down.

MIDI, formats and standards — MIDI DIN in/out connectors on an RME audio interface card — the physical ports behind the MIDI, interface and I/O terms in this section.

Key takeaways

Platforms play everything back at a target loudness, so a louder master mostly just gets turned down.
Because playback level is equalised, a hyper-compressed master gets turned down and simply arrives with less dynamic contrast than a more open one.
Compare your master to a reference at matched loudness — that is the comparison listeners will actually experience.
Watch out: mastering for maximum level to compete.
Sits under midi, formats and standards in this glossary, with 2 primary sources below.

Quick checklist

Can you define loudness normalisation in one sentence without looking?
Can you point at loudness normalisation in a real session, mix or contract?
Have you tried the practical move above at least once?
Would you catch the common mistake before it costs you a take?
Have you opened one of the primary sources below rather than a forum thread?

LOUDNESS NORMALISATION IN DEPTH

Streaming services measure each track's loudness and adjust playback so listeners do not have to reach for the volume control. Because playback level is equalised, a hyper-compressed master gets turned down and simply arrives with less dynamic contrast than a more open one.

How it works in practice

Compare your master to a reference at matched loudness — that is the comparison listeners will actually experience.

The mistake people make

Mastering for maximum level to compete. Normalisation removes the advantage and keeps the damage.

WHERE LOUDNESS NORMALISATION SITS

Loudness normalisation belongs to midi, formats and standards in the Sampled music glossary. The plumbing — the specs your gear, files and delivery pipeline agree on.

TEST YOURSELF

0/3 answered · 0 correct

3 quick questions on loudness normalisation. Answers are marked instantly — nothing is sent anywhere.

1. Which statement best describes loudness normalisation?
2. What is the mistake people most often make with loudness normalisation?
3. In practice, which of these applies to loudness normalisation?

Ready for the full thing? Take the 25-question terminology test and get a certificate with your name and score.

SOURCES AND CITATIONS

Free, primary references for loudness normalisation — standards bodies, manufacturers, government offices and university course material. Each one lists the line of this entry it backs up.

Spotify — loudness normalisation (opens in a new tab)
Primary reference · support.spotify.com
“Platforms play everything back at a target loudness, so a louder master mostly just gets turned down.”— the claim this source supports
Why it counts: Published by the organisation responsible for the thing being defined, so it is a first-hand source rather than a summary of one.
Apple Digital Masters (opens in a new tab)
Primary reference · apple.com
“Streaming services measure each track's loudness and adjust playback so listeners do not have to reach for the volume control.”— the claim this source supports
Why it counts: Published by the organisation responsible for the thing being defined, so it is a first-hand source rather than a summary of one.

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