This Dolby Atmos test is honest about what a browser can do. No web page can send a Dolby Atmos signal: browsers hand your system plain stereo or multichannel audio, without the height and object information that makes Atmos. So the test does two useful things instead. It moves a sound around you and over your head, using your browser's 3D sound on headphones or panning across 5.1 and 7.1 speakers, so you can hear what your setup can place. And the check panel shows the exact settings that turn Atmos on for Windows, Mac, iPhone, Android and TVs, what your browser reports about Dolby formats, and how to confirm Atmos is really playing. Dolby, Dolby Atmos and Dolby Access are trademarks of Dolby Laboratories, and this page is independent of them.
What this test shows and what it cannot
| Part of the test | What it tells you |
|---|---|
| Overhead path on headphones | Whether your headphones and ears place a sound above and around you |
| Speakers mode on 5.1 or 7.1 | Whether your surround speakers blend smoothly as a sound moves around the room |
| Quiz | How well 3D sound works for you, with a count of front and back mix-ups |
| Dolby Digital Plus readout | Whether this browser can play the format streaming services use to carry Atmos |
| Outputs reachable | How many channels a web page can send to your current device |
| Atmos on or off | Hidden from web pages. Use the steps in the check panel |
How to run the Atmos test
- With headphones, keep Listen on at Headphones and press Play moving sound. The default Overhead path starts in front, rises over your head and drops behind you.
- With a 5.1 or 7.1 system on a computer, choose Speakers. The sound pans across your speakers at ear level, since height speakers cannot be reached from a browser.
- Take the quiz for a score.
- In the check panel, pick your device and follow the steps to confirm Atmos is on, then test it with real Atmos content.
How to check Atmos is on in Windows
Install Dolby Access from the Microsoft Store. It sets up Dolby Atmos for home theater, free with an Atmos receiver or soundbar on HDMI, and Dolby Atmos for Headphones, a paid licence after a trial. Then open Settings, then System, then Sound, select your output and set Spatial audio to the Dolby option (on Windows 10, right-click the speaker icon and choose Spatial sound). With a receiver or soundbar on HDMI, its display should show Dolby Atmos while sound plays. Dolby Access also includes demo clips made in Atmos, which are the quickest real test.
How to check Atmos on Mac, iPhone and iPad
In Apple Music on a Mac, choose Music, then Settings, then Playback, and set Dolby Atmos to Automatic or Always On. On iPhone and iPad, open Settings, then Apps, then Music (on iOS 17 and earlier, Settings, then Music) and set Dolby Atmos the same way. Automatic plays Atmos on AirPods, Beats and the built-in speakers of supported models; choose Always On for other headphones. Play a song with the Dolby Atmos badge in Now Playing. With AirPods, Control Center also lets you choose Fixed or Head Tracked spatial audio.
How to check Atmos on Android
On Samsung Galaxy phones, open Settings, then Sounds and vibration, then Sound quality and effects, and turn on Dolby Atmos. Other phones put Dolby Atmos or Spatial audio under Sound settings, and some only offer it with particular earbuds. In music apps, look for the Atmos label on the track that is playing.
How to check Atmos on a TV, soundbar or receiver
- Connect the soundbar or receiver to the TV's HDMI port marked eARC and turn on eARC in the TV settings.
- Set the TV's digital audio output, often called Digital Sound Out or Digital Output Audio Format, to Auto or Pass Through. PCM sends stereo only.
- Play a title marked Dolby Atmos in the streaming app. Many services include Atmos only on their top plan.
- Read the soundbar or receiver display, light pattern or app: it should say Dolby Atmos. Dolby Digital, Dolby Digital Plus without Atmos, or PCM means something earlier in the chain is not passing Atmos.
Real Atmos content to test with
Use sources that carry Atmos from end to end: the demos in Dolby Access on Windows and Xbox, Dolby Atmos albums and playlists in Apple Music, Amazon Music or Tidal on supported devices, film and series titles marked Dolby Atmos in streaming apps, and 4K Blu-ray discs with a Dolby Atmos soundtrack played on a disc player connected to the receiver. Several PC and Xbox games also output Atmos when Windows is set up for it.
Atmos is greyed out or will not turn on in Windows
- No Dolby Access. The Dolby options need the app installed.
- The device does not report Atmos. Dolby Atmos for home theater appears only for an HDMI device that supports it. A TV in the middle that does not pass Atmos hides the option.
- The headphone licence. Dolby Atmos for Headphones stops working when the trial ends without a purchase.
- Laptop speakers. Built-in speaker Atmos comes from the laptop maker. If it is missing after a reinstall, get the audio driver and app from the maker's support site.
Atmos on headphones sounds no different
Most content is not Atmos, and stereo music sounds only slightly wider with Atmos for Headphones on. Test with a title or demo marked Dolby Atmos, then switch the setting off and on while it plays. Run the Overhead path and the quiz here too: if left and right are clear but front, back and height blur, that is the limit of a generic head model, which also limits Atmos on headphones. The spatial audio test explains why and what helps.
The limits of a Dolby Atmos test online
A browser cannot send Dolby Atmos, Dolby TrueHD or DTS:X, cannot reach height speakers, and cannot read whether Atmos is switched on in your system. It can only show what your headphones or speakers do with sound that moves, and what your browser can decode. For the channels below the height layer, use the 7.1 surround sound test or the 5.1 surround sound test, and check the bass with the subwoofer test.
Dolby Atmos test questions
Can a website play Dolby Atmos?
No. A web page can only hand your system plain stereo or multichannel audio, never the Atmos objects and height information. Streaming services deliver Atmos to their apps and TV devices, and most do not send it to browsers at all.
How do I know if Dolby Atmos is actually working?
Look for proof at the end of the chain: the Dolby Atmos label on your receiver or soundbar display or app, Atmos shown as active in the Dolby Access app on Windows, or the Dolby Atmos badge in Now Playing in Apple Music. A setting that says Atmos is allowed is not the same as Atmos playing.
Why is Dolby Atmos greyed out in Windows?
Dolby Atmos for home theater appears only when Windows sees an Atmos receiver or soundbar on HDMI. Dolby Atmos for Headphones needs the Dolby Access app and its licence. On laptop speakers, Atmos only appears when the maker built it in.
Do I need special headphones for Dolby Atmos?
No. Atmos on headphones is a rendering of the 3D mix into two channels, so any decent headphones work. Earbuds and headphones sold as Atmos ready mainly add a tuned profile or an app.
Why does my soundbar say Dolby Digital instead of Atmos?
The title, the app plan, the TV setting or the cable is stopping Atmos. Pick a title marked Dolby Atmos, set the TV's digital audio output to Auto or Pass Through, and use the eARC port. Over plain ARC, Atmos works only inside Dolby Digital Plus from streaming apps.
Are YouTube Dolby Atmos test videos real Atmos?
No. YouTube does not stream Dolby Atmos, so those videos play as stereo or 5.1 versions of an Atmos mix. Use a streaming app, a disc or Dolby Access demos for real Atmos.