Audio Fabric Studio logo Audio FabricStudio
Knowledge base Loudness

Loudness, LUFS, true peak, and headroom

Understand the measurements behind perceived volume, clipping risk, and why a master should be loud enough without being crushed.

Study goals

What you will understand

This guide is written for creators who want practical audio decisions, not abstract engineering theory.

01

Read LUFS, dBFS, dBTP, and loudness range without guessing.

02

Know why peak headroom matters after encoding.

03

Use before/after deltas to understand whether the master became clearer, louder, or more controlled.

Loudness map

Quick reference

Use this table as the first pass before choosing a profile or export path.

TermMeaningWhy it matters
LUFSIntegrated perceived loudness over timePredicts how loud listeners experience the file
dBFSDigital sample peak scale0 dBFS is the ceiling for PCM audio samples
dBTPTrue peak estimate between samplesHelps avoid clipping after conversion or playback
Loudness rangeHow much loudness varies over timeToo wide can feel uneven; too narrow can feel lifeless
HeadroomSpace below clippingProtects transients and encoding safety
Field notes

Lessons

Short, practical guidance you can apply while comparing previews and preparing a master.

01

Louder is not always better

A good master balances playback consistency, dynamics, and clarity. Speech often benefits from stable loudness. Music often needs enough dynamics to keep impact and emotion.

  • Use speech profiles when intelligibility and consistency matter more than musical punch.
  • Use music profiles when tone, peak control, and release feel matter together.
  • Use the before/after deltas to confirm the profile is helping instead of only making the file louder.
02

True peak is a safety check

A file can be below 0 dBFS and still clip after lossy encoding or playback conversion. True peak limiting leaves practical margin for downstream systems.

  • Watch for peak values close to zero when creating web or streaming files.
  • Do not chase loudness if the file already has low headroom.
  • For noisy source files, raising loudness can also raise room noise.
Before export

Practical checklist

Use these checks while comparing previews and preparing a full master.

  • Check whether the profile improved loudness without creating harshness.
  • Leave true peak margin for delivery formats.
  • Compare at matched listening volume, not only by which version sounds louder.
Related profiles

Good starting points

๐Ÿ“ก
Delivery

Streaming Ready

Consistent loudness for web and streaming platforms.

Best for: Web video, live streams, and platform-ready audio.

  • Prevents clipping and harsh peaks.
  • Delivers a consistent listening level.
  • Targets streaming-friendly loudness around -14 LUFS.
compressiontrue-peak limiting-14 LUFS target
Try Streaming Ready
๐ŸŽ™๏ธ
Voice

Podcast Voice

Crisp, consistent speech with reduced sibilance.

Best for: Solo podcasts, interviews, narration, and spoken-word shows.

  • Brings voices forward without harsh s sounds.
  • Keeps dialogue consistent over long episodes.
  • Targets podcast-friendly loudness around -16 LUFS.
low-cutde-essercompressionloudness target
Try Podcast Voice
๐Ÿ“บ
Delivery

Broadcast Ready

Broadcast-safe loudness and peak control.

Best for: Radio, TV, and professional distribution.

  • Matches broadcast-style loudness targets.
  • Prevents overs and clipping.
  • Good for distribution workflows that require delivery specs.
compressionlimiter-23 LUFS style target
Try Broadcast Ready