APU Software

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Latest installers and user manuals.

Loudness Series v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows

Need Windows 32-bit (x86)?

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 v5.5.3

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MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 Leveler v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 v5.5.3

Choose your operating system to download the latest installer below.

MacOS Windows User Manual

Need Windows 32-bit (x86)?

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 5.5.3

  • Fix AU validation failures

    Version 5.5.2

  • Separate low-latency setting from timing mode (leveler)

    Version 5.5.1

  • Add Integrated reset for PLR (meter)

    Version 5.5.0

  • Support PLR/PSR/Crest peak ratio output types (meter)
  • Add warning when Detector EQ monitor is enabled (compressor/leveler)
  • Allow macOS installers to install older versions

    Previous release notes …