LUFS, Loudness and the Streaming Era

For most of the 2000s, the goal of mastering was to make records as loud as possible. More limiting, more compression, higher peak levels. The loudness war. Streaming has changed the context - but the lesson isn't "master everything quiet." It's more nuanced than that.

What LUFS Means

LUFS stands for Loudness Units relative to Full Scale. It's a measurement of perceived loudness that takes into account how human hearing responds to different frequencies over time - not just peak levels, which don't correlate well with how loud something actually sounds to a listener.

There are three main LUFS measurements:

• Integrated LUFS: the average loudness across the entire track - this is what streaming platforms measure
• Short-term LUFS: average loudness in the last three seconds - useful for monitoring during mixing
• Momentary LUFS: average in the last 400 milliseconds - shows instantaneous loudness

For mastering and release, integrated LUFS is the key number.

How Streaming Normalisation Works

Streaming platforms measure each track's integrated loudness and adjust playback gain so everything sits at roughly the same perceived volume. Loud masters get turned down. Quiet masters get turned up.

• Spotify: -14 LUFS integrated target
• Apple Music: -16 LUFS integrated (Sound Check enabled by default)
• YouTube: -14 LUFS integrated
• Tidal and Amazon: -14 LUFS integrated

This is real, and it matters. But it doesn't mean every record should be mastered to -14 LUFS. That's where the oversimplified "loudness war is over" argument falls apart.

Why Genre and Context Change Everything

A folk record with a wide dynamic range sounds spectacular at -18 to -16 LUFS. The quiet passages breathe, the loud moments hit hard. Streaming will turn it up to match the loudness target, and the dynamics are preserved entirely.

A club track mastered the same way would sound weak and lifeless in the environment it's actually played in - DJ sets, clubs, festival stages - where streaming normalisation doesn't apply and loudness is currency. That track might want to be at -7 or -8 LUFS. The limiting and compression aren't a problem - they're part of the sound.

Heavy rock and metal sit similarly. The saturated, aggressive character of a heavily limited hard rock master is intentional. Backing it off to chase a streaming loudness target would hollow out the sound.

What the Loudness War Actually Meant

The loudness war was damaging not because records were loud, but because everything was loud regardless of whether it should be. A ballad crushed to -7 LUFS loses its emotional range. A quiet acoustic track distorted for volume loses its intimacy. The problem was blanket limiting applied without regard for the music.

The streaming era has reduced the commercial incentive to over-limit everything - which is a good thing. But it hasn't eliminated the case for a loud, dense master when that's what the music calls for.

True Peak and the One Rule That Applies Everywhere

Whatever the target loudness, one standard applies universally: true peak should not exceed -1 dBTP. True peak is different from sample peak - it accounts for inter-sample peaks that occur during digital-to-analogue conversion and lossy encoding. Exceeding -1 dBTP causes distortion that appears after encoding, even if the waveform looks clean in your DAW.

How James Masters for Loudness

James masters to the music and the genre - not to a single number. A folk or acoustic project gets room to breathe, and the loudness follows from the dynamics rather than being imposed on them. An EDM, club, or heavy rock record gets the density and loudness that genre expects and rewards. Pop and hip-hop land somewhere in between based on the energy and arrangement of the specific track.

The conversation about target loudness happens at the brief stage, not after the fact. If you're booking mastering at JNP, mention the genre, the intended release context (streaming only, vinyl, club distribution), and any specific loudness requirements. That's the information that determines the right approach - and getting it right before the session means you get what you actually need from the master.