Windows Sonic vs Dolby Atmos vs DTS Headphone:X: which should you use for competitive shooters?
In a game with its own HRTF, none of them: switch Windows spatial sound off and let the game do it. Everywhere else, Windows Sonic. It is free, and since the May servicing release of Windows build 22621 Microsoft gives it the same 128 dynamic objects as Dolby Atmos and DTS Headphone:X.
In a competitive shooter with its own HRTF option, use none of them: turn Windows spatial sound off and let the game do the processing. In a game without one, use Windows Sonic for Headphones. It is free, and on current Windows 11 it gets the same 128 dynamic sound objects as Dolby Atmos for Headphones and DTS Headphone:X. Paying for Dolby or DTS changes the filter the game's positions go through, not the positions.
Why "DTS for footsteps" keeps circulating
Most comparisons rank the formats by listening impression, and an HRTF impression depends on how closely its built-in head matches yours, so the same thread recommends all three. The one spec argument, "Sonic supports far more objects than Atmos", came from Microsoft's own page and has gone stale.
Microsoft's Spatial Sound developer documentation still carries the old prose: "Dolby Atmos formats support 32 total active objects", while "Windows Sonic for Headphones supports 128 total active objects". The table beneath that paragraph on the same page says otherwise for current builds. Starting with the May servicing release of Windows build 22621, every headphone format gets 128.
What each format gets from the game
A game using Microsoft Spatial Sound sends two kinds of sound. Static objects form a channel bed of up to 8.1.4.4: eight channels around you, one low-frequency channel, four above and four below. Dynamic objects can sit anywhere in 3D space and move every frame. Microsoft's object limits:
| Format | Channel bed | Dynamic objects, earlier Windows releases | Dynamic objects, build 22621 May servicing and later | Cost |
|---|---|---|---|---|
| Windows Sonic for Headphones | 17 (8.1.4.4) | 112 | 128 | Built into Windows |
| Dolby Atmos for Headphones | 17 (8.1.4.4) | 16 | 128 | Free trial in Dolby Access, then paid |
| DTS Headphone:X | 17 (8.1.4.4) | 32 | 128 | Free trial and in-app purchase in DTS Sound Unbound; included with DTS Headphone:X v2.0 headsets |
| Spatial sound off | None | 0 | 0 | Free |
The gap was real on earlier releases, including every Windows 10 build: 16 dynamic objects for Dolby Atmos against 112 for Windows Sonic. On an up-to-date Windows 11 PC it is gone.
Running out of objects silences nothing. Microsoft tells developers to prioritise by "culling, sound co-location, blending to the static channel bed", so an overflow sound loses its own independent position.
The last row matters too. With spatial sound off, Microsoft says the dynamic object count a game is offered, returned by GetMaxDynamicObjectCount, "will be 0".
Same positions, different filter
Microsoft states that the output format "is abstracted" from the game, which never has to know which of the three you picked.
The page is equally clear about what they do not do. Spatial Sound "is focused on sound positioning simulation on an idealized sphere around the listener". Windows Sonic, DTS Headphone:X and Dolby Atmos "implement speaker mapping and virtualization to headphones", while Doppler, distance attenuation and filtering, occlusion, obstruction and reverb "are left to existing engines". Distance and through-wall cues, the ones covered in positional audio, come from the game whichever format you choose.
What is left is the virtualisation filter, an HRTF simulating an outer ear that none of the three measured on your head. Windows Sonic is the only one you can keep without paying.
The decision, game by game
The rule
- The game has its own HRTF or 3D headphone option: turn it on and set Windows spatial sound to Off. The game knows the true position of every source, and two virtualisers stacked on one signal is the double processing you are trying to avoid.
- The game supports Microsoft Spatial Sound and has no HRTF of its own: Windows Sonic for Headphones. Otherwise the game is offered 0 dynamic objects.
- The game only outputs plain stereo: spatial sound off. There is no extra position information for a virtualiser to work with.
Valorant is the clearest case. Riot's patch 2.06 notes (30 March 2021) added "an audio toggle located in the Audio settings panel to enable HRTF", rendering "footsteps, reloads, and Deathmatch respawns" in 3D, and said: "It's recommended that players please turn off any other '3D Audio' processing while using this feature." Patch 2.08 added weapon drop sounds to it.
For the second case, DTS's Sound Unbound FAQ lists games that support Microsoft Spatial Sound, among them Call of Duty Modern Warfare, Gears 5, Borderlands 3 and The Division 2.
The rest of the setting order (stereo output, enhancements off, music to zero) is in the settings checklist.
When a paid format earns its price
DTS says it maintains "a database of 500+ headphones with custom tunings" in Sound Unbound. That is a correction of your headphone's frequency response, and it can help a bass-heavy model. You can do the same thing for free with a conservative EQ and keep spatial sound off.
DTS also says headsets that integrate DTS Headphone:X v2.0 "will automatically license" it. If yours does, try it against Windows Sonic in a game from the second group and keep whichever sounds more natural. The headset versus headphones decision matters more than that bundled software.
Where this stops applying
Consoles have different limits. On Xbox Series X|S with the 2303 GDK or later, Microsoft lists 220 dynamic objects for Windows Sonic, 200 for DTS Headphone:X and 128 for Dolby Atmos. Home theatre output over HDMI is also different: Dolby Atmos for home theatre uses a 7.1.4 bed with 20 dynamic objects.
A game's own HRTF is not tuned to your head either. Riot says its profile is "based on a single set of measurements, and may not feel natural at first to all listeners", and suggests training in a custom game. If it still feels wrong after that, plain stereo with spatial sound off keeps the left-right cues that headphones reproduce best.
We list only games whose developer documents the option. Valve's Counter-Strike 2 release notes since 2023 describe 3D sound processing and occlusion changes but name no HRTF toggle, so CS2 is not in the decision above.
Frequently asked questions
Is Windows Sonic or Dolby Atmos better for gaming?
For positioning, neither has a platform advantage on current Windows 11. Microsoft's resource table gives Windows Sonic, Dolby Atmos for Headphones and DTS Headphone:X the same 17-channel bed and 128 dynamic objects from the May servicing release of build 22621. They differ in the headphone virtualisation filter, which is a matter of fit to your ears, and Windows Sonic is the only one that is free.
Is DTS Headphone:X better for footsteps?
No platform fact supports that. DTS receives the same objects from the game as the other two formats. What DTS adds is a database of what it says are 500+ headphones with custom tunings, which is a frequency-response correction for your headphone, not extra position information.
Should I use Windows Sonic with Valorant?
No. Turn on Valorant's own HRTF toggle in the Audio settings and turn Windows spatial sound off. Riot's patch 2.06 notes say: "It's recommended that players please turn off any other '3D Audio' processing while using this feature."
Does Dolby Atmos for Headphones cost money on PC?
Yes, after a free trial. Dolby offers the trial through the Dolby Access app. DTS Headphone:X works the same way through the DTS Sound Unbound app, unless your headset integrates DTS Headphone:X v2.0, which licenses it automatically. Windows Sonic is built into Windows.
What happens when a game uses more objects than the format allows?
Microsoft tells developers to plan for it with prioritisation: culling, co-locating sounds, or blending them into the static channel bed. The sound does not vanish, it loses its own independent position.