The way we listen to audio has changed dramatically. In 2026, it’s evolving faster than ever. Dolby Atmos is now standard on Apple Music and Amazon Music, Google and Samsung have launched the open-source Eclipsa Audio format, and the Grammy Awards have recognised immersive audio as a standalone category since 2019.
But what actually makes Dolby Atmos different from traditional surround sound? And how does it compare to the stereo format we’ve used for nearly a century?
In this guide, we break down the key differences between stereo, surround sound and Dolby Atmos, covering how each format works and what it means for artists, producers and listeners. (For a deeper look at how Dolby Atmos Music works specifically, see our companion guide: What is Dolby Atmos Music?)
All About Stereo
Taking a quick look into the history of sound reproduction, we can trace four main steps leading up to modern spatial audio.
We began in mono: a single channel recorded with a single microphone.
Around the 1930s, stereo audio began to appear. Pioneered by engineers like Alan Blumlein at EMI (the same company that would later build Abbey Road Studios), stereo uses two microphones positioned around a sound source. The signals from each microphone are assigned to either the left or right channel, and subtle differences in timing and frequency between them create the illusion of width and space when played back.
A stereo listening setup uses two speakers. When a stereo track is played, an imaginary one-dimensional “sound field” is created between them. To hear the most convincing stereo image, you need headphones or a position equally distant from both speakers, often called the “sweet spot.”
We can move the position of a sound between the left and right channels by adjusting each side’s signal level. This is called panning. A louder signal on the left moves the sound towards the left, and vice versa. Mixing tools like EQ, compression and reverb can give the illusion that sounds are closer or further away, but they remain trapped in that one-dimensional field between the speakers.
Stereo remains the dominant format for music today. The vast majority of streaming, vinyl and digital releases are mixed and mastered in stereo.
Surround Sound: Adding Other Dimensions
The next step after stereo was to add another dimension. A conventional surround sound format is described as either 5.1 or 7.1, meaning 5 or 7 speakers surrounding you at ear level, plus a subwoofer (the “.1”). This creates a two-dimensional sound field where sounds can move front-to-back as well as left-to-right.
5.1 is the most common surround sound layout and is the standard for home cinema. It consists of centre, left and right speakers in front of the listener, plus surround left and right speakers slightly behind. With this layout, sounds can be panned between any combination of the five speakers.
A 7.1 system adds four surround speakers instead of two, splitting the rear and side channels. The side speakers sit at roughly 90 degrees to the listener, while the rear speakers are positioned behind.
These layouts can be scaled up for commercial cinemas, where multiple speakers per channel account for larger audiences.
Expanding further, we can add height channels (either 2 or 4 speakers above the listener, written as “.2” or “.4”). A 7.1.2 setup, for example, gives us a three-dimensional sound field: audio can travel front-to-back, left-to-right, and up-and-down. This is where surround sound starts to become truly immersive.
All surround formats share one goal: to reproduce audio in a way that replicates how we hear in real life, as if the sound has become a physical object in the room.
Dolby Atmos vs Surround Sound: Channel-Based vs Object-Based Audio
This is where Dolby Atmos fundamentally changes the game.
Stereo and conventional surround formats are channel-based. Individual tracks in a mix are routed to specific output channels (left, right, centre, surround left, and so on). The mix is locked to a specific number of speakers. To hear it correctly, your playback system needs to match.
Dolby Atmos is an object-based system. Instead of panning a sound to a fixed channel, Atmos stores the sound’s position as metadata, similar to X, Y and Z coordinates in a 3D space. When the mix is played back, the Dolby Atmos renderer reads this metadata and translates it to whatever speaker layout is available: stereo, 5.1, 7.1.4, or headphones.
The Atmos renderer isn’t entirely object-based, though. It also supports a conventional channel-based approach. Sounds that won’t move around the 3D space, or recordings made with multiple microphones in stereo or surround, can be routed to a surround output bus. These fixed channels are called the “bed” in Atmos. Only bed channels can send audio to the LFE (subwoofer) channel, so bass-heavy elements typically use the bed.
Objects are better for sounds that need a precise spatial location or that move through the 3D space during playback. Each object carries a single audio signal, so a stereo recording would need two separate objects.
The renderer is what makes Dolby Atmos so versatile. The same mix plays on everything from a pair of earbuds to a 128-speaker cinema, with the renderer automatically adapting the spatial positioning. More speakers means a more precise 3D sound field, but even on headphones, the effect is convincing.
Quick Comparison: Stereo vs Surround vs Dolby Atmos
| Stereo | 5.1 Surround | 7.1 Surround | Dolby Atmos | |
|---|---|---|---|---|
| Speakers | 2 | 6 (5 + sub) | 8 (7 + sub) | Flexible (2 to 128+) |
| Sound field | 1D (left/right) | 2D (left/right, front/back) | 2D (wider rear field) | 3D (adds height) |
| Audio type | Channel-based | Channel-based | Channel-based | Object-based + bed |
| Height channels | No | No | No | Yes (2 or 4) |
| Adapts to playback system | No | No | No | Yes (renderer) |
| Headphone support | Native | Requires downmix | Requires downmix | Binaural rendering |
At Studios 301, our engineers work with artists on Dolby Atmos mixing sessions, whether remixing existing stereo tracks or creating immersive mixes from scratch. Our Atmos engineer Stefan Du Randt has mixed Atmos projects across genres, from pop and electronic to classical and film.
What About Headphones?
Stereo has always been our default for music, whether on speakers at home, at a live venue, or through headphones on the go. So how do you experience immersive 3D audio through just two ear speakers?
The answer is binaural rendering. Our ears detect the position of a sound by comparing volume, frequency content and timing differences between each ear. These differences are shaped by the physical distance between your ears and the contours of your head (the “head shadow”). Binaural rendering artificially recreates these differences using HRTF (Head Related Transfer Function) algorithms, which model a virtual head shape to process the audio signal.
The limitation is that HRTFs are based on average head measurements. The further your own head shape differs from the average, the less realistic the 3D effect becomes.
This has improved significantly since 2022. Apple’s Personalised Spatial Audio (available on iPhone and recent AirPods models) uses your phone’s TrueDepth camera to scan your face and ears, generating a custom HRTF profile optimised for your unique anatomy. The result is a noticeably more convincing spatial experience.
Dynamic head tracking takes it further. Sensors in supported headphones monitor the position of your head and adjust the audio so the sound field stays anchored in place as you move. If a guitar is placed to your right in the mix, turning your head right brings it to the centre, just as it would in real life.
Dolby Atmos mixes can be rendered to binaural audio on any headphones. Apple Music’s Spatial Audio, Amazon Music’s 3D Audio and TIDAL’s Dolby Atmos support have made this the primary way most listeners experience immersive music, with no speaker system required.
Spatial Audio in 2026: Where Things Stand Now
The spatial audio landscape has shifted dramatically since Dolby Atmos Music first launched on streaming platforms.
Dolby Atmos remains the dominant immersive music format. Apple Music reported that over 90% of its listeners have tried Spatial Audio, and immersive tracks now account for nearly one-third of all plays. Amazon Music and TIDAL continue to expand their Atmos catalogues, and 85 of the top 100 Billboard artists released music in Dolby Atmos over the past year.
Eclipsa Audio, introduced by Google and Samsung in January 2025, is a new open-source, royalty-free spatial audio format developed through the Alliance for Open Media. Unlike Dolby Atmos (which requires licensing), Eclipsa is free for anyone to create and distribute. Samsung’s 2025 TV and soundbar lineup supports it natively, YouTube accepts Eclipsa Audio uploads, and Google has released free Pro Tools plugins for Eclipsa mixing. It’s early days, but the removal of licensing barriers could make spatial audio accessible to far more independent creators.
Apple quietly unveiled its own spatial audio format, ASAF (Apple Spatial Audio Format), at WWDC 2025, building on its existing Dolby Atmos infrastructure with enhanced head-tracking capabilities.
Spotify, the world’s largest streaming platform, still does not natively support Dolby Atmos or spatial audio as of early 2026. The company has acknowledged it is working on immersive audio features, but no launch date has been confirmed.
The Grammy Awards added the Best Immersive Audio Album category in 2019. Recent winners include Peter Gabriel’s i/o (In-Side Mix) in 2025 and Justin Gray’s Immersed in 2026, demonstrating that the music industry takes spatial audio seriously as a creative format, not just a technical novelty.
Is Dolby Atmos the Future of Music?
In 2022, the question was whether Dolby Atmos would go mainstream. In 2026, the answer is clear: immersive audio is here to stay.
The real question now is which format will dominate. Dolby Atmos has the catalogue, the ecosystem and the artist buy-in. Eclipsa Audio offers an open-source alternative that could accelerate adoption, particularly on Android and YouTube. Apple is building its own proprietary extensions.
For artists and producers, the practical takeaway is straightforward: releasing in Dolby Atmos gives your music access to the fastest-growing segment of music streaming. And with binaural rendering making the experience available to anyone with headphones, the barrier to entry for listeners has essentially disappeared.
Frequently Asked Questions
Is Dolby Atmos the same as surround sound?
No. Surround sound is channel-based, meaning audio is mixed for a specific speaker layout like 5.1 or 7.1. Dolby Atmos is object-based, meaning sounds are positioned in a 3D space and the renderer adapts the mix to whatever playback system you have, from headphones to a cinema.
Do I need special speakers for Dolby Atmos?
No. Dolby Atmos can be experienced on any headphones through binaural rendering. For a speaker-based experience, a soundbar with Atmos support or a 5.1.2+ speaker setup will deliver the full spatial effect.
Can I listen to Dolby Atmos on Spotify?
As of early 2026, Spotify does not natively support Dolby Atmos or spatial audio. Dolby Atmos Music is available on Apple Music, Amazon Music and TIDAL.
What is Eclipsa Audio?
Eclipsa Audio is an open-source, royalty-free spatial audio format developed by Google and Samsung through the Alliance for Open Media. It offers similar immersive audio capabilities to Dolby Atmos but without licensing fees.
Is Dolby Atmos worth it for music?
Yes, especially for artists seeking to differentiate their releases. Over 90% of Apple Music listeners have tried Spatial Audio, and immersive mixes now account for nearly a third of all plays on the platform. The Grammy Awards have also recognised immersive audio as a standalone category since 2019.
Get Your Music Mixed in Dolby Atmos
Ready to take your music into three dimensions? Studios 301 offers professional Dolby Atmos mixing for artists and labels. Whether you’re creating a new immersive mix from scratch or adapting an existing stereo release, our engineers can help.
