One Pro Tools Interface at the Center of Dolby Atmos

By in Audio Post, Music Creation, Pro Mixing

In the few years since Avid announced a unique collaboration with Dolby, Dolby AtmosTM has skyrocketed in popularity. Today, it is the standard format for film and TV sound—in theaters and increasingly in homes. Movies and shows are commonly mixed for immersive playback and popular streaming services like Netflix, Amazon Prime, Apple TV+, and Disney+ request Dolby Atmos as their preferred deliverable.

As immersive audio takes hold, post facilities and professionals are challenged with staying ahead of the curve. Session sizes are larger and more I/O is needed—full theatrical Dolby Atmos requires sending 128-channels to the Dolby Atmos Renderer and then up to 64 channels to feed a canopy of speakers. With the proliferation of new content being made, studios and facilities of all shapes and sizes are needing to participate in Dolby Atmos. They’re scaling up their systems, and in many cases, doing so in rooms that are not purpose-built for immersive audio, where acoustics and free space are a challenge.

Very easily, integrations can become overcomplicated with lots of gear. But if you want to partake in the trend, you need hardware that delivers pristine sound, unique flexibility, and lots of I/O.

An elegant solution

Pro Tools software, hardware, and control surfaces bring simplicity to Dolby Atmos mixing through deep integration. They join together as one, end-to-end system, with key Dolby Atmos functionality built in. Every important tool is easily within reach, in the software as well as on the control surface. And the hardware brings versatility and expandability to your studio without taking up lots of space—packing all the I/O, routing, and monitoring you need in no more than 2U. The result is unmatched capability for immersive mixing with just a few tremendously powerful pieces of gear.


One interface with everything you need

Both MTRX and its smaller sibling MTRX Studio combine I/O, routing, monitoring, and speaker tuning—all-in-one. Whether you’re outfitting a big multi-operator re-recording stage or a home studio, you only need one of these Pro Tools interfaces to mix and monitor Dolby Atmos.


Pro Tools | MTRX

In larger environments you’ll opt for Pro Tools | MTRX. Its enormous capacity and customizability make it the perfect companion for audio post workflows that require massive amounts of I/O. With 8 expansion card slots, it can be configured with virtually any I/O format—from analog and digital I/O, to MADI, Dante, and DigiLink. And with a 1500 x 1500 cross-point matrix, you can route between formats as well as scale your system well beyond the 128 channels you need to interface with a Dolby Atmos Renderer.

Precise control with 1,024 discrete filters across 128 channels per card—double the number needed  to manage bass and EQ monitors in a 64 channel Atmos setup.

With one 128-Channel Dante option card, MTRX is fully equipped to interface with a Dolby Atmos Mastering Suite system and the Dolby Atmos Renderer.

Connect up to 7 DigiLink I/O Cards (448 channels), and use one MTRX as the hub for multiple systems running dialogue, music, sound effects, etc.

What makes MTRX really shine is its ability to streamline. By adding an SPQ Speaker Processing Card, MTRX becomes a premium monitoring and speaker calibration solution—remote controllable via EUCON. And by adding at least one DigiLink I/O Card, a single MTRX can be the hub for multiple HDX workstations. In a re-recording environment, this means your different systems for dialogue, sound effects, and music can all connect to just one interface. As a result, you will save space in your racks, reduce the potential points of failure in your signal chain, and simplify routing.

Pro Tools | MTRX Studio

Pro Tools | MTRX Studio brings the all-in-one power of MTRX to smaller mix rooms and home studios. Like the 2U MTRX, it combines I/O, routing, and monitoring with integrated speaker tuning. And while it is not customizable, it is incredibly capable—with 64 channels of Dante, 18 analog outputs, and built in SPQ Speaker Processing.

In the emerging world of Dolby Atmos for home theater, in which there is more content than ever, smaller rooms have several advantages. They’re lean and mean—costing less, both in terms of the gear installed inside them and in terms of the square footage they require. Facilities can build more of them to keep up with demand. And freelancers can more easily afford to build their own to get in the game.

With MTRX Studio, any room can be equipped for Dolby Atmos mixing. As a freelancer, you can upgrade your studio without adding lots of gear. In a multi-room facility, installing MTRX Studio in your smaller rooms gives you workflow continuity with larger rooms running a MTRX. In fact, the entire Pro Tools ecosystem—software, hardware, and control surfaces—scales up and down with essentially the same feature set at all levels. This means that no matter where you install a Pro Tools system, you can count on it being equally powerful—fully capable to mix Dolby Atmos anywhere.

To learn more about Pro Tools for Dolby Atmos audio post production, visit

Sound That Moves

Dolby Atmos is transforming the way you experience sound. And Pro Tools is transforming the way you create it. Dive into the most powerful end to end toolset for immersive mixing.

As Pro Audio Market Solutions Manager I am focused on delivering the very best creative solutions for our customers working in music and audio post. I am passionate about creativity and technology - especially with regard to music, songwriting/storytelling, and the recording arts - and am fortunate to work closely with the products and people that define our industry.