Decorrelate Channels with Confidence
Tutorial: Decorelating Atmos
What’s not to like about a dedicated suite of advanced upmix controls that decorrelate channels from any input audio format without introducing artifacts or impacting ITU downmix?
Penteo’s Upmix Decorrelation Suite delivers a new set of sophisticated controls that enhance the spatial upmix qualities for all Stereo, Surround, Atmos and Immersive audio formats whilst always preserving 100% ITU downmix compatibility back to every input format.
Or, override downmix compatibility and gain complete artistic freedom with access to every creative control to shape your sound and speed upmix/downmix workflows.
New Controls in Penteo Pro+’s Upmix Decorrelation Suite
A free update for Penteo Pro+ customers
Remove or Preserve Left/Right
Automatically removes or reincorporates the input L/R into any output audio format and redistributes the remaining soundfield between the upmixed channels.. All Surround, Atmos and Immersive audio formats can be Stem L/R bypassed. Every upmix downmixes 100% ITU to any input format.
Side Channel Decorrelation
Create space between vocals & music & enhance spatial perception using Side Stem Bypass which removes the Lss/Rss, redistributing the soundfield between the remaining upmixed channels. All audio formats can be bypassed and every upmix downmixes 100% ITU to any input format.
Upmix via Intermediary Formats
Use alternative immersive audio formats - such as 360RA or Octophonic Cube - as an intermediary using Penteo's phaseless DSP to shape the upmix before incorporating into Atmos formats. Use solo and mute to isolate decorrelated channels, every upmix downmixes 100% ITU to any input format.
Two 100% ITU Bass Modes
Ideal for orchestral music and reverbs, Acoustic bass mode is compensated resulting in a warm, full-sounding downmix. For pop/electronic music, Precise bass mode is not compensated resulting in a tighter, more defined, digitally precise downmix. Both modes downmix 100% ITU to any input format.
Decorrelate Rear Channels Forward
Keep immersive reverbs & delays / other sounds from entering the rear channels. Bypass removes the Lsr/Rsr and redistributes the remaining soundfield between the upmixed channels. All formats can be Lsr/Rsr Stem Bypassed and downmix 100% ITU to any input format.
Preserve or Override ITU Downmix
Every Stem Bypass downmixes 100% ITU to source, but often creative mixing goals supersede the need for downmix compatibility. When Preserve ITU is deactivated, all controls are enabled for full downmix creativity. Any downmix incompatibility is indicated on Penteo’s ITU Downmix Monitor.
Wet / Dry Guitar decorrelation using Penteo Side Stem Bypass
Videos: Penteo Decorrelation Suite in Action
Using Penteo Stem bypass to keep drums out of L/R channels in Atmos 9.1.6
5.1 Surround drum input decorrelation for Dolby Atmos 7.1.4
Penteo is unique in is its ability to upmix any audio format while maintaining full ITU downmix compatibility. The new Upmix Decorrelation Suite changes the game by creating unique upmix soundfields. Any bypassed channels are redistributed to the remaining upmixed channels, all perfectly balanced, even when downmixed.
Buck Snow, MPSE
Get the Upmix Decorrelation Suite in Penteo Pro+
62 Formats | 33 Creative Controls | $799
Formats: 64 bit AU, VST3, AAX.
DAWs: Pro Tools, Logic Pro, Reaper, Pyramix, Nuendo, CubasePro, DaVinci Resolve, Ableton Live.
Min. OS: MacOS 10.15+, Windows 10+.
Licenses: Single-instance activated on iLok 2/3 key (USB) or iLok Host Computer (Machine-ID).
I use Penteo in every Dolby Atmos mix: it's the most robust & best sounding upmix plugin. Penteo's Stem Bypass control adds immersive content without compromising the fidelity of my original Stereo stems.
Alex Gamble
Audio Engineer, Producer
