Nugen Audio Halo Upmix
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Manufacturer Information
Nugen Audio
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What NUGEN Halo Upmix Is For
Halo Upmix is designed to convert stereo tracks into high-end multichannel mixes intended for television, cinema, sound design, and immersive experiences. It facilitates archive restoration, TV-to-cinema repurposing, ambiance spatialization, and integration of stereo music or effects into 5.1/7.1 deliverables, while guaranteeing a safe and faithful stereo foldback.
Main Features
Natural and Coherent Upmix
Dedicated algorithms analyze stereo source localization cues to expand the panorama without altering its character. The result is a wide and deep soundstage, free of artifacts, ready for broadcast and cinema post-production.
Center, Dialogues, and Low-Frequency Energy
Center management includes the choice between hard center and phantom center, as well as neural network-driven dialogue extraction. Low-frequency energy control optimizes the LFE channel without bloating or muddying the mix.
Real-Time Visualization and Control
The spatial analysis view displays the energy distribution of the upmixed panorama and indicates each speaker's contribution by color, making hard center vs. phantom center predominance obvious and speeding up mixing decisions.
Guaranteed Downmix Compatibility
The "Exact" mode maintains the integrity of the original/upmix/downmix relationship, with in-place monitoring, ideal for TV repurposing and workflows where stereo compliance is critical.
Immersive 3D Extension (Optional)
This extension adds vertical controls, Ltm/Rtm placement for Dolby Atmos compatibility, dedicated vertical analysis, and 1st, 2nd, and 3rd order Ambisonics outputs (AmbiX format) for VR and gaming. Compatible with AAX for Avid Pro Tools and VST3 for Steinberg Nuendo on macOS and Windows.
Technical specifications
| Type | Full software |
| Downloadable | Yes |
| Mac | OS X 10.9; Memory: 1 GB; Plug-ins: VST-3, AU, AAX. |
| Windows | Windows 7; Memory: 1 GB; Plug-ins: VST-3, AAX. |
| Standard | LCR, 3.1, 4.0, 4.1, 5.0, 5.1, 6.0, 6.1, 7.0, 7.1. |
| Immersive 3D Extension (optional) | Dolby Atmos 7.1.2 bed, Auro-3D 7.1.4, Ambisonics 1st/2nd/3rd order outputs (AmbiX). |
Questions frequently asked
Can Halo Upmix convert stereo to 5.1 or 7.1?
Supported output formats include 5.1 and 7.1, as well as LCR, 3.1, 4.0, 4.1, 5.0, 6.0, 6.1, and 7.0.
How to preserve the stereo mix after multichannel upmixing?
The “Exact” mode maintains the relationship between the stereo source, the upmix, and the downmix. In-place monitoring allows direct control of this result within the workflow. This feature suits productions where stereo return compliance is critical.
Does the plug-in allow extracting dialogues to the center channel?
Dialogue extraction is driven by neural networks, with options for hard center and phantom center. Low-frequency energy control also enables adjusting the LFE channel without muddying the mix.
Which plug-in formats are compatible on Mac and Windows?
On macOS starting from OS X 10.9, VST3, AU, and AAX formats are supported with 1 GB RAM. On Windows 7, VST3 and AAX are available, also requiring 1 GB RAM.
Is the 3D Immersive extension compatible with Dolby Atmos?
The optional 3D Immersive extension adds Ltm/Rtm placement and Dolby Atmos playback in 7.1.2. It also supports Auro-3D 7.1.4 and Ambisonics AmbiX outputs of 1st, 2nd, and 3rd order.
