Protection Type
an iLok Dongle is required
Windows Requirements
  • Windows (64-bit) Vista or above
  • 512 MB RAM
Mac Requirements
  • Mac OSX 10.9 or above (not yet compatible with macOS Big Sur / Monterey)
  • 512 MB RAM
Precise Downmix and surround re-balancing
Precise surround control, versatile downmix balancing and mix monitoring for accelerating and enhancing your surround productivity. Halo Downmix is the glue that brings your workflow together, allowing you to deliver in surround and stereo with ease and without compromise.

Applications include:

• Surround-to-stereo downmixing
• Surround re-balancing and fine-tuning
• Simultaneous surround/stereo workflow
• Surround restoration
• Stereo production within a surround workflow
• Maintaining dialog clarity in surround
• Removing rear-delay artefacts from legacy upmixing practices


Expert surround-to-stereo:

Using standard downmix coefficients can sometimes lead to unsatisfactory results, particularly if legacy upmixing practices were used for the original surround mix. Halo Downmix quickly mitigates these issues and produces a more coherent stereo mix, controlling excessive diffuse sound from artificial reverb, and removing delay artefacts from the rear channels.

Fine-tune surround-to-surround:

Adjust existing 5.1 or 7.1 mixes in surround-to-surround mode. Individual channels, and the balance between direct/diffuse sound can be adjusted to fine-tune or re-balance surround audio where access to the original mix is not possible.

3D Immersive Extension:

The 3D Immersive Extension option (sold separately) for Halo Downmix adds the ability to downmix from 7.1.2 - the format used for Dolby Atmos bed tracks.

Parallel workflows:

Halo Downmix can also be used in conjunction with the NUGEN Receive plug-in (included) to enable a parallel surround/stereo workflow. This allows for rapid A/B checks between the full surround mix and the stereo downmix.

Flexible, intuitive interface:

Halo Downmix provides a highly creative solution for precise downmixing. Intuitive, visual controls for relative levels, timing, and direct/ambient sound balance allow unprecedented fine-tuning, delivering accurate downmixes no longer limited by typical in-the-box processes.

Halo Downmix’s highly customisable interface includes both advanced & compact modes, with quick-select ‘in-place’ monitoring of stereo and surround signals, as well as quick linked solo and mute functions at every stage, and clear visualisation of surround energy distribution.

Product Features

Powerful control:
  • Ambient vs direct sound balance
  • Automatic rear channel delay detection
  • Surround input width control
  • Rear channel shelf filters
  • Downmix Low Frequency handling
  • Highly customisable interface
Reliable metering:
  • Full input and output level metering
  • Direct numerical entry of all gain offsets
  • Adjustable meter colour splits
  • Surround energy distribution visualisation


Introduction to Halo Upmix and Halo Downmix Video
Introduction to Halo Upmix and Halo Downmix
00:03:31 by NUGEN Audio Jun 3, 2019
Find out more about Halo Upmix and Downmix in this short video. You can use Halo Upmix to create a coherent, natural-sounding upmix. Halo Downmix allows you to fine-tune your downmix.
Halo Downmix review Video
Halo Downmix review
00:07:04 by Production Expert Apr 25, 2017
Halo Downmix has been designed by the team at Nugen Audio for downmixing of feature-film or 5.1 mixes to stereo, with controls for relative levels, timing, and direct vs. ambient sound balance.
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