- top rated
"Simple but powerful. A new go-to plugin!"Mike Aiton. Dubbing Mixer & Sound Designer at award-winning post-production & sound design studio, Mikerophonics.
"For the mix of the feature documentary, 'I Am a Ukrainian: Personal Stories of a Revolution', I used the Halo Upmix to take the stereo music cues and spread them to surround."Tom Marks. Re-Recording Mixer, Warner Bros.
"I have been using Halo at every possible opportunity. The way it processes stereo sounds directly into 5.1 or larger multi-channel surround arrays is astounding."Mike Wabro. Audioinsight LTD
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.
Natural Extension
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.
Downmix Compatibility
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.
Big Sound
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.
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
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 option
System Requirements
Available Formats
- 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 Specifications
- Mac OSX 10.7.x, 512 MB RAM
- Windows XP 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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