You put on your headphones, and suddenly the music seems to come from the side. In a game, you hear an opponent’s footsteps behind you, and during a movie, the rain seems to surround you from every direction. That’s the simplest way I could describe the effect of spatial audio.
Although headphones have only two drivers – one for each ear – the right audio processing can create a convincing impression that sound is coming from different directions. Today, such solutions are used in games, films and increasingly in music as well.
How is it possible for two drivers to create the impression of sound coming from every direction? To answer that question, you first need to understand how people locate sounds.
How does spatial audio work?
The human brain can determine the direction of a sound thanks to small differences in the timing and volume of the signal reaching each ear. Spatial audio uses this property by modifying the audio signal accordingly. As a result, sounds can seem to come from the front, back, side or even above your head.
The effect depends not only on the technology being used, but also on the quality of the recording and the listener’s individual characteristics. That is why two people may perceive the same scene slightly differently.
Reproducing the direction of a sound is only the beginning, though. An even greater sense of realism appears when the system knows where your head is at any given moment.
What does head tracking do?
Head tracking, or tracking the movements of your head, provides an even greater sense of realism.
Without this feature, the soundstage rotates together with you. If you turn your head, dialogue or music will still seem to come from the same place relative to your ears.
Head tracking works the other way around. The sound remains "anchored" in space, just as it does in real life. When you look to the side, dialogue still seems to come from the screen, and in a game it is easier to determine the direction from which an opponent’s sounds are coming.
But that is not where the possibilities of spatial audio end. The effect you ultimately hear also depends on the technology responsible for processing the signal.
Dolby Atmos, Spatial Audio and virtual surround – how do they differ?
The term spatial audio covers several different technologies. They share a common goal – creating a convincing spatial soundstage – but each achieves it in a slightly different way.
Dolby Atmos uses object-based audio, allowing individual effects to be placed at specific points in space. The solution is widely used in films, games and streaming services.
Apple Spatial Audio develops this idea within the Apple ecosystem, adding support for dynamic head tracking in compatible AirPods, among other features.
Sony 360 Reality Audio was created mainly with music in mind and allows producers to position instruments around the listener.
On PCs and consoles, you will most often come across solutions such as Windows Sonic, DTS Headphone or Dolby Atmos for Headphones. Virtual 7.1 surround is another category, designed primarily to improve sound localization during gameplay.
One example of such a solution is the ENDORFY Viro Plus USB headset, whose included USB sound card processes the signal and creates the spatial effect.
Does spatial audio really help in games?
Yes, but on one condition – the game needs to make good use of a spatial mix.
In online titles, especially FPS games, precise localization of footsteps, reloads or gunshots can help you react faster. It will not replace skill, but it can help you stay better oriented on the map.
If you mainly play RPGs or adventure games, spatial audio primarily builds immersion and makes the world feel more natural. That is why gamers often pay attention not only to the quality of the headphones themselves, but also to how they support spatial audio processing technologies.
What about films and music?
In films, the spatial effect is usually the most noticeable. Dialogue remains in front of the viewer, while special effects and ambient sounds gain a clearer direction, making the experience feel more like watching a film at the cinema.
Music is a different story. Well-prepared Dolby Atmos or Sony 360 Reality Audio mixes can sound impressive, but many tracks are still produced primarily with classic stereo in mind. That is why spatial audio is best treated as an interesting extra rather than the main reason to buy headphones.
Is it worth buying headphones with spatial audio?
If you often play games or watch films, definitely. Well-implemented spatial audio makes it easier to locate sound sources and increases the sense of presence in a virtual world.
If you mainly listen to music, it should not be the most important selection criterion. The drivers themselves, tuning and the comfort of the headphones still have a much greater impact on listening quality.
In practice, it is best to treat spatial audio as one of the features of good headphones rather than their most important distinguishing feature. Even the best algorithms cannot replace solid drivers and a well-designed construction.
Summary
Spatial audio does not make headphones play louder or more powerfully. Its purpose is to create a more realistic soundstage in which it is easier to determine the direction and distance of a sound source.
Gamers and people who watch films will notice the greatest benefits. In music, the effect depends mainly on the quality of the recording and how it was prepared. This is not a technology that completely changes how headphones work. It can, however, make familiar games, films and series feel completely different. And that is precisely why spatial audio is increasingly moving beyond being a curiosity and becoming a standard feature of modern headsets.
