Audio Master

Node type: utility:audio_master
Category: Editing

Description

Normalizes the loudness of a video's audio track (EBU R128 loudness normalization) and optionally trims leading silence. The video stream passes through untouched; only the audio is re-encoded.

Canvas ports

These appear as port handles on the left side of the node.

ID	Label	Details
video	Video	VIDEO (required)

Sidebar config

These render as form fields in the right-side config panel when the node is selected.

ID	Label	Details
preset	Preset	TEXT · default tiktok. Named loudness preset applied by the mastering service
trimSilence	Trim Silence	BOOLEAN · default true. Cut leading silence before normalizing
lufs	Target LUFS	NUMBER · optional. Overrides the preset's integrated loudness target
truePeakDb	True Peak (dB)	NUMBER · optional. Overrides the preset's true-peak ceiling
lra	Loudness Range	NUMBER · optional. Overrides the preset's loudness range target

lufs, truePeakDb, and lra are passed through to the mastering service only when set; leave them empty to use the preset defaults.

Outputs

ID	Label	Type
video	Mastered Video	VIDEO

The result also carries preset (the preset that was applied) and appliedFilter (the ffmpeg filter string used), useful for debugging.

Notes

• The video input accepts a bare URL string or a { url } / { videoUrl } / { video } object.

---

Auto-generated from the Wireflow node registry.