Stereo to 5.1, 7.1 and 3D Upmixer
Halo upmix delivers all the control you need to fine-tune your surround mix to perfection with intuitive ease – From naturally extracted and expanded soundscapes to full cinematic big-stage enhancement. 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.
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.
Optional 3D Immersive Extension
(7.1.2 Dolby Atmos® bed track-compatible upmix/Amisonic Output)
The 3D Immersive Extension introduces additional vertical controls via an expanded user interface including control over Ltm and Rtm placement for Dolby Atmos compatible placement. An additional real-time analysis view is also included for the vertical dimension, showing energy distribution of the output audio.
The enhanced upmix algorithm allows for simultaneous use of all the original features including dialog isolation and individual channel output control.
The Halo 3D option is suitable for numerous applications including sound design, film score, restoration & archive, music and atmospheric soundscape production. The Halo Upmix 3D Immersive Extension currently supports Avid Protools (AAX) & Steinberg Nuendo (VST3) for Windows and OSX.
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
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)
Upmix 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).
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 HDMinimum 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.