audio-loudness-normalization
Skill202 starsChanged 14 days agoMITView on GitHub
Normalizes a single audio file to consistent LUFS loudness with true-peak limiting using FFmpeg. Use when the user wants loudness normalization, volume matching, unified audio levels, SFX/UI/BGM leveling, or mentions LUFS, true peak, loudnorm, or inconsistent game audio.
1 other project uses a version of this.
Adopted by
Most recently taken up by
- godot-fun/gaiword for word, first seen Nov 1, 2026
Other versions1 project uses a version of this.
Word for word · 1
- godot-fun/gai★ 202100% same
Edited · 0
None found.
Wrote their own version · 0
None found.
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository37 other files it gives its agents.
- AGENTS.mdAGENTS.md
- .agents/skills/AGENTS.mdAGENTS.md
- ai-text-to-speechSkill
- audio-denoiseSkill
- audio-fadeSkill
- audio-sample-rate-standardizeSkill
- audio-splitSkill
- audio-to-oggSkill
- audio-to-textSkill
- audio-to-wavSkill
- audio-trimSkill
- audio-volume-adjustSkill
- file-naming-normalizationSkill
- git-commit-messageSkill
- image-inpaint-regionSkill
- image-region-remove-key-color-appSkill
- image-remove-backgroundSkill
- image-remove-white-backgroundSkill
- image-resizeSkill
- image-sprite-sheet-splitSkill
- image-to-pngSkill
- image-to-textSkill
- image-trimSkill
- storyboard-av-mixSkill
- storyboard-shot-to-htmlSkill
- storyboardSkill
- storyboard-ttsSkill
- video-4k-normalizationSkill
- video-compress-to-sizeSkill
- video-merge-gpuSkill
- video-mergeSkill
- video-publishSkill
- video-remove-audioSkill
- video-to-4kSkill
- video-to-60fpsSkill
- video-to-ogvSkill
- video-to-wavSkill
The file
We split this skill into the rules it gives an agent
5 rules. About 0 are common, 1 is distinctive, and 4 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈1
Distinctive · estimate
This author's own choices. Worth a look.
4
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 12
When this skill applies, read and follow dependency-manager — run scripts as documented, install missing tools into .dependency/.
- Very specific: line 16
Default: -14 LUFS, -1.5 dBTP, output to <audio-dir>/audio-loudness-normalization/<audio-name>:
- Very specific: line 48
Use the bundled script (two-pass loudnorm), not hand-written FFmpeg.
- Very specific: line 52
Do not use -output pointing at the source file.
- Distinctive: line 53
Do not fix uneven levels with per-asset volume in game code — re-normalize sources.
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Audio Loudness Normalization
Loudness-normalize one audio file to a target LUFS with true-peak limiting. Preserves input format — same extension and sample rate as the source. Directories are not supported; run once per file to process a folder.
Rules
When this skill applies, read and follow dependency-manager — run scripts as documented, install missing tools into .dependency/.
Quick Start
Default: -14 LUFS, -1.5 dBTP, output to <audio-dir>/audio-loudness-normalization/<audio-name>:
.dependency/python/python .ai/audio-loudness-normalization/normalize.py --audio path/to/audio.wavExample: audio/sfx/tank/tank_move.wav → audio/sfx/tank/audio-loudness-normalization/tank_move.wav
LUFS Targets
| Category | LUFS |
| UI / clicks | -18 to -14 |
| Gameplay SFX | -16 to -12 |
| Explosions | -12 to -8 |
| Ambience | -22 to -18 |
| BGM / voice | -16 to -14 |
One category per folder. Mixed folders: split first, then normalize each file with matching -t.
Common Flags
--audio · -t / --target-lufs · -output
.dependency/python/python .ai/audio-loudness-normalization/normalize.py --audio Audio/SFX/click.wav -t -14Never overwrite source files. The script writes only to audio-loudness-normalization/ (or -output). Supported inputs: .wav, .mp3, .ogg, .flac, .aac, .m4a, .wma.
Agent Notes
- Use the bundled script (two-pass
loudnorm), not hand-written FFmpeg. - Preserves input format — same extension and sample rate (
-arforced to source); does not resample. - Missing Python/FFmpeg → populate
.dependency/per dependency-manager, retry same command. - Do not copy, move, or replace the source with the normalized output — tell the user where
audio-loudness-normalization/files are; they swap assets manually when ready. - Do not use
-outputpointing at the source file; the script refuses paths that would overwrite the input. - Do not fix uneven levels with per-asset volume in game code — re-normalize sources.
- Engine bus defaults and rationale: reference.md
Tests
From repo root:
.dependency/python/python .ai/audio-loudness-normalization/test_normalize.pyManual CLI examples: cli/audio-loudness-normalization.md
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