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Dolby Atmos

Dolby Atmos Demo Scenes

Great Dolby Atmos Demos

Dolby Atmos Demos

15 world-class demos, from over-the-top action films to sci-fi epics to concerts

by the Cineluxe staff
updated May 30, 2023

A premium entertainment system needs great content to look and sound its best, and just as we highlighted several classic films that show how fantastic 4K HDR can look, we’ve also curated a list of some of the best-sounding Dolby Atmos demos—both movies and music—that will demonstrate what your system is capable of! These selections highlight some of the best features of Dolby Atmos, from huge sounds happening over your head to placing voices and sounds all around you to sonically transforming your theater into an entirely different space. If you’re looking to wow your friends and family, this list is a great place to start.

Great Atmos Demos

Across the Universe

Across the Universe is set in Vietnam-era USA and uses the music of the Beatles to explore the tensions and culture clashes of that period. “Let It Be” flashes between the violence of the 1967 Detroit riots and the war in Southeast Asia. Two characters are killed in the violence and we see their respective funerals in the aftermath. The song, sung by a gospel choir, is hauntingly plaintive. (Maybe it’s only because I grew up with these scenes of violence on the evening news but I cannot see this scene without choking up a bit—even though I have watched it dozens of times.)   —Jon Herron

Baby Driver

The “Bellbottoms Bank Job” scene is an absolute grand slam, checking off nearly every box for “What makes a great demo?” It’s literally the opening of the film, and it’s action packed, with some of the best driving you’ll see on screen, with a fantastic accompanying audio track. The music in the opening plays loud and proud from the overhead speakers, with vocals that swirl around the room, and features a sub-heavy bass line that drives the tempo. A potent and well-calibrated sub will have you feeling the Subaru’s engine revs in your chest as Baby pushes the WRX to its limits. You’ll clearly hear tires squealing, with the audio tracking every siren, horn honk, and car that whizzes by.    John Sciacca

Dune (2021)

The Dolby Atmos soundtrack for Villeneuve’s Dune is less a sound mix than it is a completely immersive sound experience. Woe be to those who attempt to enjoy the film through a soundbar or basic home theater speaker setup. There’s so much going on here—even before the film itself begins—that you need the expanded channel count of Atmos to appreciate the way the sound effects, dialogue, and Hans Zimmer’s best score to date combine to create a 21st-century opera. When the film turns to pure audiovisual experience, as it often does, the audio mixing works in conjunction with the spectacular Dolby Vision imagery to tiptoe right up to the edge of sensory overload without feeling even slightly abusive. That’s an impressive trick in itself.    —Dennis Burger

The mixers take every opportunity to have ships and objects flying or rumbling past overhead. Right from the start, probe droids launched from the Destroyer whiz across your ceiling, not to mention all the flyovers from tie-fighters, snow speeders, mynocks, and more. Ghost Obi-Wan and the Emperor’s voice boom from overhead and all around as appropriate. Beyond the big action scenes, we get a ton of ambience and atmospheric sounds in nearly every scene. Outside on Hoth, the blizzard whips wind and snow around the room. On Dagobah, we’re immersed in jungle sounds, with creature noises and leaves rustling, and a brief rainstorm that showers the room. Bass is deep and powerful, whether it’s explosions or the mighty foot stomps of the AT-AT walkers. Perhaps most important, dialogue is always clear and properly placed, not always in the center channel but tracking characters as they move off screen.    —J.S.

Great Atmos Demos

Ender’s Game

“Dragons vs. Salamanders & Leopards” is a zero-G training exercise in a space station. Think of it as a Space Age “capture the flag” game. As you might imagine, thanks to the zero-G aspect of this scene, there are things happening in pretty much all directions, to the point where (in a good system) it can even seem a bit disorienting. There is no blood or gore—if someone is “shot.” their suits just lock up so they can’t move until the game has finished. Good, family-friendly action.    —J.H.

Great Atmos Demos

Gravity

The film opens with a big swell of music and what sounds like rocket engines firing before cutting to total silence as we orbit the earth. As George Clooney slowly circles the shuttle in his rocket pack, Ed Harris’s voice from NASA control is mixed aggressively up to the ceiling speakers, giving a real “in your helmet” sense to the audio. Gravity does an amazing job of taking advantage of the four discreet overhead speakers, which are frequently used independently to bounce, swirl, and shift the audio environment around the space of ceiling. The most intense demos happen near the end of Ch. 4 and into Ch. 5. As Stone enters the ISS, all sound focuses on her lack of oxygen and her breathing sounds, with the sub channel beating out a steady thump-thump heartbeat pulse. As she is moving around weightlessly inside the space station, there are little clanging and debris sounds inside the cluttered cabin, and when the fire breaks out, alarms blare through the overhead speakers punctuated with tense music until she hits her head and all audio ceases.    —J.S.

Great Atmos Demos

John Williams in Vienna

While some might prefer one of the more familiar and dynamic cuts (of which there are many), we usually start a Trinnov demonstration with the opening piece, “The Flight to Neverland” from Hook. The track opens to the sound of the orchestra tuning and the audience eagerly anticipating the start of the concert. In Atmos, this sounds uncannily real, as does the ovation John Williams receives as he takes the podium. The soaring performance keeps the entire orchestra engaged throughout, with plenty of percussion highlights.    —J.H.

You get a taste of what you’re in for in the film’s opening seconds, with planes flying and fighting overhead and buzzing around the room. The overhead flyover is a favorite of Atmos theater owners, and this definitely delivers, with plenty of other similar sonic moments, such as helicopters swirling around, announcements from PA systems, or the blare of master caution alarms. This  dynamic Dolby Atmos mix almost constantly has something going on, including big dynamic effects and tons of ambient jungle sounds like bugs and wind rustling leaves in trees. The mix also does a great job of tracking audio objects, such as when things move left/right of center and then pass into the surrounds off camera. We get a near-videogame use of localizing threats, as you’ll hear things coming up on the characters from the surround channels. And there is a healthy amount of low-frequency effects courtesy of explosions and Kong’s roaring and stomping.    —J.S.

Midway (2019)

Midway offers a fun ride that sounds fantastic in a home theater. You might even call it a 2-hour 18-minute Dolby Atmos spectacle masquerading as a war movie. The mix plays a dynamic role in nearly every scene, and if anyone has every wondered if their height speakers are working or if Atmos can add to the immersion of a movie, just show them any of the aerial attack scenes where the audio lends a wonderful third dimension to plane flyovers. Midway will also test your subwoofer’s mettle, with deep bass present throughout. There is the constant low, steady, bassy rumble as a background reminder that you’re aboard a warship, along with other ambient mechanical sounds to place you on board. There is also the carnage of the USS Arizona breaking up after explosions and then ripping itself apart with groans, creaks, and the rumble of crumpling steel.    J.S.

Old

The Dolby Atmos mix is a big highlight here, as M. Night Shyamalan really leans into the possibilities of immersing the listener in sound and utilizing all of the speakers. Jungle sounds fill the room, with birds and wind creating a nice canopy of sound overhead and all around. You also get nice audio moments like the sounds of the hotel’s lobby Muzak pumping out of the ceiling speakers like you are walking through the hotel, or the sounds of water dripping from overhead in the cave complex, or the noise of crashing waves and surf all around. The mix really plays with the location of voices. Most films anchor about 90% to the center speaker, but here we have dialogue that literally swirls 360 degrees around the room, as a character is turning and listening to people talking, which really puts you in the moment. It will also lay bare if your speakers have any timbre-matching issues, as you’ll really notice a change in the tone and quality of the dialogue.    —J.S.

Great Atmos Demos

Ready Player One

The “First Challenge” scene is just fantastic eye and ear candy throughout. Once the race starts, the music stops and the scene is all about sound effects. Notice how the smoky exhaust from Parzival’s DeLorean wafts into the room, the smoke dissipating. The rumble as the bridge constructs itself is deep with bass, and the fireworks to begin the race explode overhead. The race is filled with cars cartwheeling overhead and around the sides of the room, racers swirling back and forth, around all sides, and overhead, with tires squealing for mercy. Explosions have tight, deep, concussive bass, letting you feel each virtual metal-on-metal crunch—and you can practically track the progress of every bouncing coin or piece of debris. When T-Rex and King Kong get in on the action, their foot stomps raise the bass concussion to the next level, with roars/growls that energize the entire room. Notice how the mechanical sounds of Art3mis’ bike dying are clearly placed in the back of the room behind the listeners, and gradually move to the foreground as she approaches the bike.    J.S.

The new Dolby Atmos remix very rarely shows restraint. It’s big, bold, loud, and an outright violation of your subwoofers’ rights. Normally, I would hate this kind of mix, but for such a ridiculous spectacle as this movie is, it just works. I wouldn’t change a single thing about the it. If you want to hear this audaciousness at its best, cue up the battle of the bands between Scott Pilgrim’s Sex Bob-Omb and the electronica keyboard wizards the Katayanagi Twins. In the original surround mix, all you could really focus on was the sonic assault of the subwoofers. In Atmos, you can really appreciate the nuances and details that make this sound like an actual musical melee.    —D.B.

Dennis Burger is an avid Star Wars scholar, Tolkien fanatic, and Corvette enthusiast who somehow also manages to find time for technological passions including high-end audio, home automation, and video gaming. He lives in the armpit of Alabama with his wife Bethany and their four-legged child Bruno, a 75-pound American Staffordshire Terrier who thinks he’s a Pomeranian.

Jon Herron was already doing physical editing (razor blades and editing tape) on reel-to-reel tape recorders when he was 13 years old and has been involved in the home entertainment business ever since. For most of the past 30 years or so, he has worked at Madrigal Audio Labs (makers of Mark Levinson and Proceed), Wisdom Audio, and now at Trinnov Audio, where he is General Manager. He feels fortunate to have worked alongside so many amazing people along the way.

Probably the most experienced writer on custom installation in the industry, John Sciacca is co-owner of Custom Theater & Audio in Murrells Inlet, South Carolina, & is known for his writing for such publications as Residential Systems and Sound & Vision. Follow him on Twitter at @SciaccaTweets and at johnsciacca.com.

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Rooms for Improvement

Rooms for Improvement

Rooms for Improvement

Rooms for Improvement

the entertainment spaces in this Australian home are undeniably spectacular—but after a decade in use, they were ready for a major sonic makeover

the entertainment spaces in this Australian home are undeniably spectacular—but after a decade in use, they were ready for a major sonic makeover

by Michael Gaughn

by Michael Gaughn

October 31, 2022

This story could have easily just been about the Theo Kalomirakis-designed Art Deco home cinema. Or it could have focused instead on the jawdropping one-of-a-kind entertainment area, with its discreet stage, ability to accommodate 250 guests, and epic views of Sydney Harbor. But there turned out to be an even bigger—though not quite as showy and obvious—story to be told, about how these kinds of high-end spaces have become so elaborate and flexible and the trends and technologies influencing and supporting them are evolving so quickly, that we’re now being presented with an unprecedented array of opportunities—but also the continual challenge of staying ahead of the curve. 

Every home cinema is a completely custom and unique machine. And the open-floorplan multi-use entertainment areas that are beginning to supplant dedicated theater rooms (like the one profiled in “Achieving Serenity”) are even larger and more complex machines that have to be able to handle a wider and wider variety of tasks. You don’t need to be a techie or have any interest in what’s going on under the hood to realize that creating something like that and keeping it functioning optimally means relying on massive processing power. The key thing to remember is that these systems are basically one-off computers and subject to all the thousand shocks and upgrades our digital brethren are heir to.  

Because of that, this is also a story about not the visible but the invisible. As spectacular as these rooms are, they’re literally useless unless someone keeps a constant and careful eye on all manner of things that are never seen by their users. Acoustical designer Steve Haas has developed a reputation as a master of that unseen realm, one of a you-can-count-‘em-on-the-fingers-of-one-handful of people who know how to not just tame but maximize these intricate, individually crafted mechanisms so they can achieve and maintain peak performance. The portfolio of his company, SH Acoustics, extends well beyond private residences to museum and commercial venues as well, and Haas found himself having to draw extensively on that broader pool of knowledge in order to make this Australian homeowner’s exceptional mandate a reality.

A VERSATILE PERFORMER

The seven levels that constitute this 55,000-square-foot residence—let’s call it the Sydney Home—rest terraced in a rock face overlooking the harbor, with the iconic bridge and opera house prominent in the dioramic views from its primary living spaces and numerous terraces. It shouldn’t be a surprise to hear that a home of this caliber would hold a theater from a premier designer like Kalomirakis, nor that Haas, who has collaborated on some of Theo’s most ambitious efforts (including the legendary Paradiso) should have been called in to handle the acoustic and audio chores. 

The entertainment area, with its  spacious bar & lounge area and terrace with epic views of Sydney Harbor, can comfortably accommodate 250 guests

The stage area, with the main speakers hidden behind the fabric at the top of the proscenium. Steve Haas took the client to the Steinway showroom in New York to help him select the Model B grand piano.

The home has seen performances by numerous A-list artists, including Sting, Michael Bolton, and Australian native Delta Goodrem (above)

“Once I had some dialogue with the client, we realized there was a need to have me consult on other keys areas of the home,” says Haas, “especially what they call the Level 1 entertainment space.” It’s not unusual for a home of this size to have a place for holding parties, hosting events, and staging live performances, but you’d be hardpressed to come across another similar space as well realized or as chameleon-like as the one here. 

The room gives few clues to its other capabilities when they’re not in use, feeling causal, comfortable, and domestic. Furniture groupings and large canvases help disguise the stage’s true identity, with the main speakers for performances hidden behind fabric panels in the soffit above the proscenium, and with a dropdown projection screen and monitor speakers tucked into the ceiling of the stage area. 

The client’s desire to have the room provide exceptional sound for parties, fundraisers, and other large events as well as for both movies and live entertainment created a unique challenge for Haas since each use had its own set of not necessarily cross-compatible needs. The music for parties had to be able extend into the bar area, out onto the various terraces, and into other parts of the home as well, while the stereo sound for performances needed to match what you would expect to hear in a high-end nightclub, and the movie system had to supply satisfying surround for groups as large as you’d find in a commercial cinema—all in a wide-open room filled with glass, wood, and other structural and decorative enemies of quality sonic reproduction.  

Haas was especially concerned about architect Alec Tzannes’s design for the ceiling, which used suspended elongated 3/4″ rectangular slats to create a barrel vault that would conceal the multitude of speakers, subwoofers, lighting cans, and ducts. “The client actually flew me over to Sydney to make the case,” says Haas, “because he had consulted with a local acoustic expert who had said there would be no problem. And I looked at it and said, no. This is absolutely wrong.” His solution was to use round dowels instead. “After we did our calculations and I created a physical mockup of the dowel system, we saw that the sound would bend around them in a way that would have a negligible effect.”

The curve of the ceiling was also a problem since it would tend to reflect and focus the sound from the speakers instead of spreading it evenly throughout the room. To help address that, and all the many reflective surfaces, Haas took advantage of the space above the dowels to apply extensive sound absorption.

Not only have the homeowners and their guests been impressed with the result, so have the numerous A-list artists who have sung there—Sting, Michael Bolton, and Australia’s Delta Goodrem among them. “Michael Bolton said it was one of the best-sounding places he’s ever performed in,” says Haas. 

MIXED SIGNALS

Cut to a decade later. The homeowner tells Haas he’s concerned the digital signal processors (DSPs) tasked with handling all the various audio responsibilities are beginning to fail. It’s not that the gear is faulty—it’s just at the end of its lifespan. “It’s not uncommon to see DSPs fail after 10 years,” says Haas. “They’re essentially computers, of course”—which means they’re just as likely to start crapping out as any laptop or desktop PC. And they’re subject to the same rapid technological advancements, with all their inevitable upgrades. Staying a step ahead of the upkeep is just a fact of life with anything this diverse and complex.

Rooms for Improvement

The 7.1-channel surround sound system in this Theo Kalomirakis-designed home theater was recently upgraded to Atmos via the addition of eight Wisdom Audio ceiling speakers 

PROJECT TEAM

acoustical designer

Steve Haas
SH Acoustics

theater designer

Theo Kalomirakis
TK Theaters

custom integrators
Datascene

architect
Alec Tzannes

Haas saw the task as not a chore but an opportunity to bring all the various types of DSP currently in the house under one brand and system. And while he was at it, why not upgrade the private cinema to Atmos as well?

With its 7.1-channel California Audio Technology speaker array, the cinema had been serving the homeowners well since its inception in the early ‘00s. But, having been impressed by Wisdom Audio’s ceiling speakers, Haas felt that adding eight of them to the room to create an Atmos configuration would significantly enhance the movie-watching experience. And the speakers were compact enough that he could have them installed without having to engage in a massive do-over.

Not that the upgrade wasn’t a challenge. Because they couldn’t dismantle the whole ceiling, Haas wasn’t sure what he, the contractors, and the custom integrators from Sydney-based Datascene would find when they attempted to tap into the preferred speaker locations. So they adopted a surgical approach, working their way carefully around the duct work and other impediments. And because there are bedrooms just above the theater, a tremendous effort had been made during the original construction to ensure none of the sound would bleed through the ceiling. Honoring this, they kept as much of the existing treatments in place as possible as they added the new speakers, also providing sound-isolation caps in each of the speaker locations. 

Premium theaters like this one often rely on a tip-top-of-the-line sound processor from a company like Storm Audio or Trinnov. But Haas went with a Marantz AV8805 instead because it provided the desired sound quality without all the additional bells and whistles of the higher-end models and would more readily work in tandem with the QSC Q-Sys pro-audio DSP he was deploying throughout the other key areas of the home.

It was also time to replace the projector—and rebuild the projection booth, which, located near the cliff face, had been infiltrated by moisture. Haas helped the client pick the new projector, consulting with Barco and coming back with a recommendation for its Wodan model. But this required an acoustical makeover for the booth since the new projector was significantly louder than the previous one and the noise would have been distracting, especially for anyone sitting in the last row, which rests up against the booth wall.

Acoustical designer Steve Haas calibrating the sound for the Level 1 entertainment area.

Rooms for Improvement

Acoustical designer Steve Haas calibrating the sound for the Level 1 entertainment area.

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At 38 feet, the room is unusually deep for a private theater. “In a room like that,” says Haas, “you can get so sonically disconnected from the front that by the time you get to the rear seats, it feels like you’re in a different space.” To address this, he used acoustical treatments to disperse the sound so that the experience would be the same no matter where someone is sitting. 

For all the defining trends the Sydney Home represents, maybe the most significant is its extensive blending of consumer and pro gear. As high-end homes incorporate more elaborate entertainment areas like dance floors and live-performance spaces, they need to be able to provide sound on par with what artists expect in professional venues—along with the ability for DJs, sound mixers, and others to be able to jack in their gear.

Also, a multiform multipurpose system as flexible and complex as the one here can quickly exhaust the abilities of the hardware available on the consumer side of things. It often takes robust, function-specific professional gear to rise to these emerging challenges.

Haas, who is just as comfortable working on recording studios, concert halls, and galleries as he is on domestic environments, turned out to be the ideal fit for a project this ambitious. As a member in good standing of that previously mentioned acoustical elite, he was able to bring the necessary combination of expertise and experience to bear. Relying on someone whose knowledge is limited to the residential world to master something like this is a sure-fire recipe for disaster. Since entertainment areas are only going to get bigger, more versatile, and exponentially more complex, better to place them in the hands of people like Haas who not only think, but perform, well outside the home theater box.

Michael Gaughn—The Absolute Sound, The Perfect Vision, Wideband, Stereo Review, Sound & Vision, The Rayva Roundtablemarketing, product design, some theater designs, a couple TV shows, some commercials, and now this.

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Atmos Finally Grows Up

Atmos Finally Grows Up

Atmos Finally Grows Up

The ultimate immersive format no longer relies on filling your room with gimmicky effects just to make its presence known 

by Dennis Burger
April 19, 2022

It never fails. Every time I admit to liking a new Dolby Atmos mix, my fellow home-cinema aficionados refuse to let me live it down. They behave as if I’ve converted to some weird cult, or—more charitably—as if I’ve finally seen the light. You can almost hear them chanting, “One of us! One of us! 

And you could say I brought this on myself, given what a vocal detractor I’ve been of Atmos and other “immersive” audio formats. That I’ve recently had nice things to say about some of these mixes could, I acknowledge, be interpreted as a change of heart. 

It isn’t. I haven’t changed. Nothing about my taste in surround sound mixing has evolved or softened, and if you put any of the abusive, distracting Atmos mixes I’ve griped about over the years in front of me now, I’d gripe just as vociferously. What has changed is that after a decade of trial and error, mixers have finally figured out how to make Atmos work with the films they accompany rather than against them. Of course, I’m not entirely sure you can blame the mixers. After all, those technicians and artists were simply giving early adopters what they demanded. 

We see this sort of thing happen any time a new expansion of sound comes to market. Think back to the awful stereo mix for The Beatles’ Rubber Soul, an album that can only be truly appreciated as a cohesive work in mono. Even a few years later, the stereo mix for Jimi Hendrix’ Are You Experienced was a curiosity at best.

Fast forward to the era of digital surround sound, when DVD arrived on the scene and we were convinced to replace our old surround sound receivers with spiffy new 5.1 models. We all wanted to hear more discrete surround effects and more pronounced deep bass to justify our new purchases. As a result, Hollywood gave us soundtracks like that of The Fifth Element, which made for a great home theater demo but was a major distraction if you wanted to actually enjoy the movie. (Ironically, the 2015 Atmos remix is actually subtler and more immersive—meaning less distracting—than the 5.1 mix included with the original DVD in the late ’90s.) 

It’s no surprise we had to go through the same growing pangs with Atmos. Or perhaps it would be more appropriate to call it an arms race. Those who were first to adopt Atmos at home shelled out a pretty penny to have additional speakers installed in their ceilings, more amps to drive them, and new receivers or preamps to decode and process the soundtracks; and they demanded to be rewarded for their investment with a torrent of sound coming from every which direction. But now that they’ve gotten their cheap fix, the rest of us can finally start to enjoy Atmos mixes that genuinely add something to the experience of watching a film rather than smacking you over the head with a newspaper at every opportunity. 

Take Nightmare Alley. It’s hard to imagine a mix like this one being created—or tolerated—ten years ago at the dawn of Atmos. It’s often—though not always—subtle. There are things going on in the overhead channels almost constantly, but they all work in the service of creating and enhancing the mood of the film and the feel of its environments. It’s the slow roll of thunder overhead and off toward the horizon, as well as the hum of mercury-vapor lamps indoors, that make the film’s locations feel tangible and multi-dimensional. They draw you into the experience rather than pulling you out of it. The soundtrack doesn’t fill your room with sound—it makes your room disappear. You don’t consciously think about where the sound is being placed because it simply feels right.

But I’m not saying Atmos mixes have to be subtle to be effective. The immersive soundtrack for last year’s Dune is incredibly aggressive. It leans on the overhead channels far more than do many of the Atmos mixes from years past that I find overbearing and counterproductive. But re-recording mixers Ron Bartlett and Doug Hemphill knew what they were doing. They didn’t crank up the mix and leave it there. They leaned hardest on the overhead and surround channels at the moments when the film becomes a pure operatic experience of sight and sound, and also when the visuals are simply so compelling no audio gimmick could pull your focus away from the screen. 

There have also been some recent experiments in Atmos that accomplish with sound what The Wizard of Oz did with Technicolor. Last Night in Soho is a perfect example. I can’t imagine that film working nearly as well without the benefit of its inventive 3D sound mix. The very shape of the soundfield is a subtle but unmissable clue about the lead character’s mental state and the delineation between reality and fantasy within the context of the narrative.

Granted, just because we’re getting there doesn’t mean we’re there yet. The recent Apollo 10½: A Space Age Childhood is a sweet and endearing little semi-autobiographical memoir that’s hobbled by an Atmos mix that treats the experience more like a theme-park ride than a work of cinema. Thankfully, such mixes are becoming less common, especially for films of this sort.

All of which is a long and roundabout way of saying that I haven’t come around to Atmos. I haven’t seen any light. I’m not a convert. I’ve long understood the potential of Atmos as a way of further immersing the viewer in the cinematic experience. I’ve simply been disappointed by Hollywood’s insistence upon using it to turn nearly every film into the experiential equivalent of Jaws 3-D. Now that it’s becoming something grownups can actually enjoy, I’m all for it. But make no mistake: I haven’t changed. Atmos has. 

Dennis Burger is an avid Star Wars scholar, Tolkien fanatic, and Corvette enthusiast who somehow also manages to find time for technological passions including high-end audio, home automation, and video gaming. He lives in the armpit of Alabama with his wife Bethany and their four-legged child Bruno, a 75-pound American Staffordshire Terrier who thinks he’s a Pomeranian.

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My Love/Hate Relationship with Dolby Atmos

My Love/Hate Relationship with Dolby Atmos

My Love/Hate Relationship with Dolby Atmos

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Atmos might be a little too unnatural—and gimmicky—to be satisfying as a surround sound experience

by Dennis Burger
January 9, 2019

I have a friend who turns his nose up at surround sound. Press him on the matter and he’ll demur and hedge his argument, but it’s pretty clear he thinks stereo is where it’s at for movies and music alike. And I think he’s absolutely bonkers. 

I mention that not to pick on him but rather to empathize, because I imagine the face I make at him is the same face our own John Sciacca makes at me when I admit that I just don’t like Dolby Atmos—at least not for movies. That might seem strange given that I’m on record as lauding the format—with its overhead speakers and innovative use of audio objects instead of channels—when applied to video games. You haven’t really played Overwatch until you’ve heard Pharah scream, “Justice rains from above!” from above your actual head. 

The weird thing is, I love Atmos with gaming and generally hate it with movies for pretty much exactly the same reasons. And to understand why, you’re going to have to do a little homework.

Take a lawn chair out into your front yard and sit in it with your back to the street. Your neighbors may give you strange looks, but this is for science. Just run with it.  Now pull out a book and start reading it. At some point, a car might drive by behind you. If the book is decent enough, chances are you won’t even notice, unless you live on a street so remote that passing traffic is an oddity. 

Keep on reading until a plane or helicopter passes overhead. Your concentration immediately broke, didn’t it? OK, maybe not if you live near an airport or airbase, and you’re used to planes flying overhead. But for most of us, if something flies overhead, we’re gonna drop the book and look upward. 

Atmos is a lot like that for me. It triggers something in my primate brain—a fight-or-flight mechanism, if you will. I’m reminded of vervet monkeys, who have different words in their rather complex vocabulary for “python” and “eagle.” If a monkey shouts “python,” nearby members of its tribe scan their surroundings. If the cry is “eagle,” on the other hand, they drop what they’re doing and run for the nearest hidey hole. 

And Atmos generally does that to me. There’s just no denying that sound coming from overhead is hardwired into our brains as something we have to focus on. In a video game, that can be critically important since these virtual worlds often contain threats coming from every direction. Hearing that a baddy is attacking you from overhead can be the difference between virtual life and death.

But unlike video games, movies aren’t sandboxes. Our focus is on a rectangle of space right in front of us; someone else gets to decide where our eyes turn. It’s an inherently horizontal experience, and while sounds coming from the sides and behind don’t violate that experience, sounds coming from overhead do. As with our daily lives, anything that happens outside of that horizontal plane is somehow distinct, different, and disconnected.

That can actually be kinda cool with movies like Ready Player One or others that live or die purely on audiovisual spectacle. Heck, it’s even great with movies like The Last Jedi, where the overhead sound effects generally work to add ambiance and a sense of space, not vertical sensationalism. But such mixes are few and far between. For the most part, Atmos serves only to distract me from the narrative experience. And just to be clear, I’m not saying John or anyone else is wrong for liking that effect. I’m merely rebelling against the increasingly pervasive notion that if you don’t have an Atmos-capable sound system, you’re somehow doing home cinema wrong.

Try to seek out an Atmos demo before you decide if this “immersive” audio technology is right for you. And if it’s not—if tried-and-true surround sound does the trick—don’t feel like you’re selling your movie-watching experience short. I mean, as long as you’re not just watching movies in stereo . . . 

Dennis Burger is an avid Star Wars scholar, Tolkien fanatic, and Corvette enthusiast who somehow also manages to find time for technological passions including high-end audio, home automation, and video gaming. He lives in the armpit of Alabama with his wife Bethany and their four-legged child Bruno, a 75-pound American Staffordshire Terrier who thinks he’s a Pomeranian.

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Cineluxe Basics: Immersive Audio

Cineluxe Basics: Immersive Audio

Cineluxe Basics | Immersive Audio

A Brief History of Surround

To understand what is next generation” about the latest surround formats, a bit of history is relevant. Surround sound was introduced back in 1940 in Disneys Fantasia with something called Fantasound, but modern surround formats trace their roots to the 1970s when Dolby introduced Dolby Surround. Dolby regularly updated this technology for both cinema and home applications, and we saw this evolve into Dolby Pro Logic, Dolby Digital, Dolby Surround EX, Dolby Pro Logic II, and more. One of Dolbys major cinematic surround competitors, Digital Theater Systems (DTS), introduced its system in 1993 for the release of Jurassic Park, and has introduced updates—and home solutions—similar to Dolby. (Those interested in taking a deeper dive will find the Wikipedia entry on Surround Sound” fascinating.)

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A tech-free guide to the next-generation surround sound formats

by John Sciacca
January 10, 2022

We realize our readers dont want to get deep into the weeds with the technical bits, but part of our mission is to provide the basic information you need when not only making a decision about your home entertainment system but also when selecting what to enjoy on it. We use terms like immersive audio” or object-based audio” pretty frequently, so having an understanding of what those things mean and why they’re important will give you some context when reading other features and reviews.

The main thing to realize is that all previous versions of surround sound were channel-based, meaning that audio was mixed in the studio for a specific, fixed number of speakers. This started with four channels, then grew to five, and maxed out at a channel count described as 7.1. This included seven main speakers (front left, center, and right, surround left and right, and surround back left and right), with the “.1” designating a channel reserved for low-frequency effects such as explosions or dinosaur foot stomps (which are usually reproduced through a subwoofer). 

Besides the fixed channel count, earlier surround formats positioned the sound in a horizontal array around the listener. And even though there might be multiple speakers along the side of a movie theater, they all served to deliver just two channels (left and right surround), meaning audio couldn’t smoothly and realistically move around the space, especially when you had a larger viewing area with multiple rows of seats. 

The next-generation surround sound formats are often described as “immersive” or 3D audio because they can not only produce a 360-degree field of sound around you at ear level but also a bubble or canopy of sound overhead, creating a truly three-dimensional audio experience. Another major development of many next-gen surround technologies is moving away from channel-based to object-based mixing. Audio designers now have up to 128 “sound objects” that can be moved anywhere around the room, allowing sounds to be more precisely located. These objects also have size and weight, so a massive starship hovering overhead has a different feel—and plays out of more speakers—than, say, a tennis ball bouncing.

To precisely locate objects around the room, next-generation surround systems—both the soundtracks and the processing hardware—support far more discrete speaker locations, including multiple height speakers placed above listeners to create sounds originating and traveling overhead. Premium home installations can support up to 34 speakers in a 24.1.10 array (24 listener-level speakers and 10 height speakers, with the “.1” again referring to the subwoofer.)

While a full complement of 34 speakers will deliver the ultimate home experience, that isn’t always realistic or practical in every listening room. To accommodate systems with fewer speakers, modern audio processors have a channel renderer that creates a custom audio mix on the fly to remap audio objects to whichever speaker configuration—both number and location—is being used, meaning as little as possible is lost between the theatrical and home audio experience. 

Dolby Atmos is the most common next-generation surround format by far, but you should also be aware of DTS:X, IMAX Enhanced, and Auro-3D.

Dolby Atmos

Atmos is supported by every major movie studio, and the number of movies, concerts, video games, and even music albums mixed for Atmos is growing all the time, with hundreds of titles available. Atmos content is available on Blu-ray and Ultra HD Blu-ray discs, titles downloaded from the Kaleidescape Movie Store, and from streaming services like Vudu, Netflix, HBO Max, Disney+, and streamed audio via Apple Music, Amazon Music, and Tidal.

The most common Atmos speaker layout at home is 7.1.4 (seven listener-level speakers, one subwoofer channel, and four height speakers). This provides an immersive experience in medium-size rooms with full 360-degree audio pans around the listener at ear level as well as good hemispherical coverage overhead, and is supported by nearly all equipment manufacturers.

An Atmos home theater system is far more flexible and adaptable than a channel-based one. With a channel-based approach, the number of speakers is fixed, but while Dolby Atmos will work fine with a basic seven-speaker setup, thanks to the ability of compatible receivers to remap the audio mix, adding more speakers will give you an even powerful experience. For larger rooms with three or more seating positions, high-end Atmos processors from manufacturers like Trinnov, JBL Synthesis, Storm Audio, and Steinway Lyngdorf can support up to 34 speakers, ensuring smoother panning and more even sound distribution across every seat. 

DTS:X

Like Atmos, DTS:X is an object-based audio codec that aims to create multi-dimensional sound that moves around you like it would in real life. While DTS:X has a considerable following in movie theaters, there are significantly fewer titles available for home viewing compared to Atmos. DTS:X soundtracks can be found on some Blu-ray and Ultra HD Blu-ray discs as well as on the Kaleidescape Movie Store (with around 40 currently available); no streaming services currently support the format. Much like Atmos, virtually every receiver and processor manufacturer supports DTS:X so it isnt a hardware choice youll need to worry about. While the format maxes out at a speaker count of 7.1.4, the recommended speaker layout and positioning is similar to Atmos, so they work well with each other.

DTS:X Pro

To address home theaters with greater speaker counts, DTS introduced DTS:X Pro in 2020, expanding the number of speakers to 30.2 channels including top height, top surround, and center front height locations, allowing for greater spatial resolution and realism. Existing DTS:X content already has the additional channel metadata embedded so any DTS:X movie you own is ready for the expanded channel count, with the DTS:X Pro processing being handled by a compatible audio processor. DTS:X Pro can be found on higher-end processors from Acurus, Denon, Marantz, and McIntosh and is supported by all of the premium brands, including Trinnov, JBL Synthesis, Storm Audio, and Steinway Lyngdorf.

IMAX Enhanced

DTS and IMAX have created a special variant of the DTS:X processing found in home audio systems to provide a soundtrack that delivers the deeper bass and greater dynamic range found in theatrical IMAX releases. IMAX Enhanced systems have a recommended speaker layout of  7.2.4 (seven listener-level speakers, two subwoofers, and four height speakers). When IMAX DTS:X processing is engaged (typically
triggered by a metadata “flag” in the content), the processor will automatically make adjustments to the settings to maximize the presentation, with the processor displaying some version of “IMAX DTS:X”.

IMAX Enhanced was announced in 2018 but has had a fairly slow rollout, with the format found on just a handful of Ultra HD Blu-ray discs. Owners of select 2021 Sony TVs have access to the largest selection of IMAX Enhanced content via Sony’s Bravia Core streaming service, and Disney+ recently started streaming IMAX Enhanced video content on select Marvel titles. Disney+ doesn’t currently support the IMAX DTS:X audio format but has announced it will do so in the future. 

Auro-3D

Auro Technologies developed the Auro-3D  immersive 3D audio format in 2005. Unlike Atmos and DTS:X, Auro-3D uses channel-based mixing, with three distinct audio layers with speakers placed at ear level, a height layer, and a top layer known as the Voice of God.” Home Auro-3D speaker systems can support configurations from 9.1 to 13.1 speakers, dividing the side, rear, and ceiling channels into “zones,” allowing for placement of sound at discrete points along the listening-room walls or ceiling as well as within the room itself. Auros recommended speaker placements for the height layer differ from both Dolby and DTS, along with its unique implementation of the Voice of God speaker. 

Due to a movie-theater partnership with Barco, Auro-3D is employed in theaters  throughout Europe but has yet to gain a foothold in the States, and most of the Blu-ray movie discs featuring an Auro-3D soundtrack are only available in Europe. But the format is receiving a lot of attention in the music industry, with several high-resolution releases available from labels like Pure Audio. Auro-3D also uses the companys Auro-Matic” upmixing, which is becoming a popular way to listen to traditional stereo recordings in a multichannel speaker environment due to the natural sound quality and ambience the upmixer can extract. Auro isn’t as widely supported by hardware manufacturers but it can be found on premium brands like Trinnov, JBL Synthesis, Storm Audio, and Steinway Lyngdorf as well as on many Denon and Marantz receivers. It will soon make its way to higher-end Yamaha models via an upcoming firmware update. 

Probably the most experienced writer on custom installation in the industry, John Sciacca is co-owner of Custom Theater & Audio in Murrells Inlet, South Carolina, & is known for his writing for such publications as Residential Systems and Sound & Vision. Follow him on Twitter at @SciaccaTweets and at johnsciacca.com.

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