APU Software

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Latest installers and user manuals.

Loudness Series v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows

This installer includes all the latest APU Software plug-ins and applications. See the individual product download sections below for separate installers, supported software formats, and user manuals.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.


Loudness Meter v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

Loudness Compressor v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

Dynamics Optimizer v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application.

Loudness Limiter v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

Spectrum Analyzer v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

Loudness Contour v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

TrueGain v4.7.1

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

The user manual above is also available on the live docs site.

System requirements: macOS 10.14 (x64, ARM), Windows 10 (x86, x64), OpenGL 3.2.
Supported software formats: Standalone application, VST, AU, AAX (Pro Tools 11+).

Release Notes

Version 4.7.1

  • Further filter improvements (contour/truegain)

    Version 4.7.0

  • Fix timestamp jitters/artifacts in certain long-running scenarios
  • Fix look-ahead mode average (compressor/optimizer)
  • Remove high-pass option, always enabled (contour/truegain)
  • Filter quality improvements (contour/truegain)

    Version 4.6.4

  • Bring back ECMA-418 presets (compressor/optimizer/limiter)

    Version 4.6.3

  • Fix sidechain causing peak limiter overs (compressor/optimizer/limiter)

    Previous release notes …