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Normalize to LUFs 1.0.5

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@chymeramusic chymeramusic released this 07 Jul 15:56
extension
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Normalize to LUFS

An Ableton Live extension that measures and normalizes audio clips to a target integrated loudness (LUFS) per ITU-R BS.1770-4 / EBU R128.

Installation

  1. Download the latest .ablx file from Releases or from this repository.
  2. Double-click the .ablx file, or drag it into Ableton Live.
  3. The extension appears in the right-click context menu on audio clips.

Usage

Right-click an audio clip (or select multiple clips / a time range) and choose Normalize to LUFS: Normalize to LUFS...

A dialog appears with the following options:

Target LUFS

Enter the desired integrated loudness. The extension remembers the last value you used. Common targets:

Platform Target
Spotify -14 LUFS
YouTube -13 LUFS
Apple Music -16 LUFS

Action

  • Normalize clips in place - Replaces each selected clip with a loudness-normalized version. Supports undo (Cmd/Ctrl+Z). Always outputs WAV 32-bit float at the source sample rate.
  • Export each clip (normalised) - Exports each selected clip as a separate normalized audio file to the project's Samples/Processed folder. Original clips are left untouched.
  • Export each track (bounce & normalise) - Requires an Arrangement time-range selection. Bounces each selected audio track within the time range and exports as a normalized file to Samples/Processed.
  • Export from main (bounce & normalise) - Requires an Arrangement time-range selection. Renders all audio tracks in the project for the selected time range, mixes them down to stereo, normalizes, and exports a single file to Samples/Processed.

Export settings

These options apply to all export modes (greyed out for normalize-in-place):

  • Format - WAV or AIFF
  • Sample rate - Original (keep source rate), 44,100 Hz, 48,000 Hz, 88,200 Hz, or 96,000 Hz
  • Bit depth - 16-bit, 24-bit (default), or 32-bit float

Apply limiter

Off by default. When enabled, a brickwall sample-peak limiter at -1 dBFS prevents any sample from clipping. When limiting is required, the final loudness may fall slightly below the target.

Selection modes

How you select What gets processed
Right-click a single audio clip That clip
Select clip slots in Session View, right-click All selected clips
Drag a time-range selection in Arrangement View, right-click All audio clips / tracks in the range

Requirements

  • Ableton Live with Extensions support (API version 0.0.5 or later)

Author

Brendan - chymeramusic

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