- About Us
From naturally extracted and expanded soundscapes to full cinematic big-stage enhancement, Halo upmix delivers with intuitive ease, all the control you need to fine-tune your surround mix to perfection. With unique centre channel management, including switchable dialog extraction, Halo is perfect for all types of production from archive restoration and TV through to the full 7.1 Feature Film experience.
"we're now using Halo Upmix for any film or television project in which we want to create a highly natural-sounding 5.1 upmix for home and theatrical surround audiences... At Creative Audio Post, we're dedicated to ensuring that every sound element contributes to a production's overall emotional soundscape, and Halo Upmix has become an essential part of our toolkit. "
Jacques Boulanger | Creative Audio Post
Powerful real-time analysis of the original stereo material identifies and extracts locational cues, to naturally extend the panorama - without the introduction of any artificial reverberation, chorusing or delay into the downmix - leaving the inherent character of the original source intact.
Because Halo generates a coherent spatial sound, you can be assured of a high-quality downmix. The 'exact' mode function ensures ultimate downmix performance where, as in TV re-purposing for instance, maintaining the relationship between the original, upmixed and downmixed versions is imperative.
For those situations that require an immersive cinematic dynamic, full control is available of all the relative surround balances, allowing any surround upmix to be crafted for a perfect blend into the complete 7.1 panorama.
Detailed Centre Channel Control
Centre channel extraction and control is provided for in a separate 'advanced' panel for use when dealing with intricate mixes, where no access to the original stems is available, offering unparalleled control - including neural network based dialogue extraction.
Powerful Spatial Analysis
Halo also includes a powerful spatial analysis view, intuitively showing the energy distribution of the upmixed panorama. Colour can additionally be used to indicate the speaker source for audio in any position, clearly indicating cases including phantom vs hard centre predominance etc.
Phantom Centre LF Centre Divergence Hard Centre
Optional 3D Immersive Extension
(7.1.2 Dolby Atmos® bed track-compatible upmix/Amisonic Output)
- Stem and group upmixing
- 7.1 cinematic sound stage enhancement
- TV stereo to surround upmixing with hard centre
- Re-purposing of original stereo for cinematic release
- TV archive enhancement for 5.1 broadcast
- Natural extension of original stereo panoramas and atmospheres
- Upmix to Dolby Atmos compatible 7.1.2 bed tack (3D extension required)
- Umpix to 1st order Ambisonic (AmbiX format) for VR applications (3D extension required)
Cross platform/Multiple format
Halo Upmix is available in VST, AU and AAX formats & requires a surround-compatible plug-in host (5.1/7.1).
Jeff Mullen | Sonichead
"We didn't need much experience with Halo Upmix to understand its power not only for the downmix compatibility needed for TV sound production, but also for delivering the creative flexibility required by today's audio engineers."
Terrance Dwyer | Owner | Mixers Hollywood
"At Mixers, music is usually delivered to us as mixed, stereo files. We use the Halo upmixer on all of our mixes to gently spread the stereo files into the 5.1 spectrum. We also do this with all stereo backgrounds. Unlike the previous plugin we used for this purpose which seemed to wash out 'localized' instruments, Halo allows us to do just enough to create a faithful, convincing upmix. We've come to expect a lot from Nugen and Halo delivers."
Gary Zacuto | Shoreline Studios
"HALO was used in two recent game cinematics - Fallen Empire received 'Best Trailer' award at E3 in Los Angeles, and Dishonored was 2nd. Both trailers were mixed with Halo as our upmixer. "
Scott Gershin | Technicolor
"Halo Upmix is proof that sometimes the most elegant tools are also the simplest. Upmixing is a task that can be extremely time-consuming, but Halo Upmix makes it really fast and easy to generate a surround mix that sounds almost identical to the original stereo source."
Stereo to 5.1 & 7.1 upmix
Including: LCR, 3.1, 4.0, 4.1, 5.0, 5.1, 6.0, 6.1, 7.0 & 7.1
Stereo to 3D Immersive Extension
7.1.2 (L, C, R, Ls, Rs, Lsr, Rsr, Ltm, Rtm, LFE)
1st Order Ambisonic (AmbiX format) output
Highly Downmix Compatible
- Coherent spatial upmix
- 'Exact' downmix mode
- In-place downmix audition
Natural Panoramic Extension
- Preserves character of original audio
- No artificial reverb, chorus or delays introduced to downmix
- Full access to all surround balances
Detailed Centre Channel Control
- Neural network dialog extraction
- Low frequency energy dispersal
- Clear phantom vs hard centre control
Powerful Spatial Analysis & Intuitive control
- Clear visual feedback representing surround panorama
- Workflow enhancing direct control over upmix parameters
- Full LFE control options
Click here to download product manual
Halo | Introduction
Mark Apicella from SSR London takes us through the highlights of Halo Upmix.
Halo | Overview
Preview video overview of the Halo interface by Mike Thornton of ProTools Expert.
We support AAX, VST, VST3, AU and AudioSuite in both 64-bit and 32-bit versions. RTAS is also available as 32-bit only.
Note: The AAX surround support requires Protools HD
Minimum System Specification
Mac OSX 10.7.x, 512 MB RAM
Windows (64 bit) Vista or above, 512 MB RAM
Surround capable DAW/NLE.
Halo 9.1 upmix extension currently supports Avid Protools (AAX) & Steinberg Nuendo (VST3) for Windows and OSX.
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Mix & Mastering