APU Software

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Latest installers and user manuals.

Loudness Series v5.5.4

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 v5.5.4

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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 v5.5.4

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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 Compressor v5.5.4

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 v5.5.4

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 v5.5.4

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 v5.5.4

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 v5.5.4

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 v5.5.4

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 5.5.4

  • Fix PLR/PSR/Crest peak durations (meter)
  • Fix startup/reset glitch in contour shape (contour/truegain)
  • Audio thread optimization (contour/truegain)
  • Preset browser with search and categories
  • Add option to full reset on preset load
  • Fix text overlapping in horizontal orientation

    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)

    Previous release notes …