APU Software

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Latest installers and user manuals.

Loudness Series v5.1.8

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 v5.1.8

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 v5.1.8

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 v5.1.8

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 v5.1.8

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 v5.1.8

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 v5.1.8

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 v5.1.8

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 5.1.8

  • Show loudness history peak option (meter/compressor/optimizer/limiter)
  • Show spectral histogram peak option (spectrum/contour/truegain)
  • Mel scale axis (spectrum/contour/truegain)
  • Cleaner statistics background (meter)
  • Prune duplicate default presets (compressor/optimizer/limiter)

    Version 5.1.7

  • Separate win64/win32 installers to reduce download sizes (Windows)
  • External file loudness histogram matching and source distribution type (optimizer)

    Version 5.1.6

  • Logo refresh
  • Undo/redo support in standalone applications
  • Multi-line text bubbles for layered panels
  • Persist ABC save slots

    Version 5.1.5

  • Enable “breath” effect for vibe check mode (compressor/optimizer)
  • Make Traditional presets window duration consistent (compressor/optimizer)
  • Support loopback audio input in standalone applications
  • Fix audio settings combo-box popup issue

    Previous release notes …