Dirac VR™ is a high-end alternative to existing VR audio technologies for 3D sound reproduction in headphones. Using patent pending Dynamic HRTFs (head-related transfer functions), Dirac VR elevates VR/AR audio to a new level of realism that is so transcendent, you’ll forget you’re even wearing headphones.



•  Groundbreaking Dynamic HRTFs for unparalleled positional accuracy

•  One degree resolution in all three dimensions

•   One size fits all—avoid front/back, up/down  confusion without the need for individual calibration

•  Transparent sound

•  Patented headphone optimization technology

•  Extremely low CPU and memory consumption

•  Unity SDK & Dirac 3D audio SDK available—contact us now!

It was eerily convincing.

– Carlo Lo Raso, Secrets of Home Theater and High Fidelity

Dirac VR exceeded my expectations of what can be done today.

– Tyll Hertsens, InnerFidelity


Eliminating a Major Industry Barrier for Truly Immersive Audio


Simultaneous visual and aural immersion is the linchpin of a true virtual reality experience. But so far, the limitations of 3D audio technology used in VR/ AR programming have prevented this true immersion from happening. Resulting in a subpar VR experience with too many reminders that true reality exists elsewhere.

Dirac VR breaks through this barrier. Using patent pending dynamic HRTFs, high-resolution HRTF rendering, and other new technologies, Dirac VR allows for a truly immersive VR/AR experience. In 2017, Dirac VR was named “Best Virtual Reality Industry Technology” at the TechXLR8 Awards.


Groundbreaking Dynamic HRTFs

Right now, the VR audio industry solely relies on static HRTFs to reproduce VR sound. The static HRTF approach assumes that when we move, our head and torso rotate in tandem. However, in reality, no one moves their body in this way. Such failure to take dynamic head movements into consideration in virtual reality is one of the reasons why existing positional sound solutions don’t quite sound realistic.

By contrast, Dirac VR’s groundbreaking Dynamic HRTFs account for the isolated movements of the head in relation to the body, ensuring correct reproduction of sound in the virtual domain.

 3D - VR sound

High-Resolution, Transparent HRTFs and More


The torso-head dilemma isn’t the only immersion limitation Dirac VR resolves. Common knowledge has it that in order to reach accurate, high-resolution positioning without sound coloration, one must rely on the individualized HRTF measurements of each listener. This is a complicated process that results in a database full of HRTFs that still lack resolution, and suffer from measurement noise and errors.

Dirac VR is based on a highly sophisticated HRTF measurement process, which is far more accurate than other approaches. This method has been applied to a large population of people in order to generate a generic, high-resolution model that captures the most common HRTF characteristics of the measured population. The resulting model avoids front/back and up/down confusion while providing a transparent sound with a one degree resolution in all three dimensions. What’s more, it doesn’t require individualized calibration for each specific listener.

Furthermore, Dirac VR uses a proprietary 3D reverberation engine that realistically renders the critical aspects of a room’s unique acoustics in order to create a sense of a specific space and distance which mirrors reality. Dirac VR also includes our patented headphone optimization technology to minimize any coloration attributable to the headphones themselves. As a result, a more balanced and transparent sound with richer details is achieved.


High Quality Sound Experience with 360° Audio Sphere


With Dirac VR, users can enjoy high quality positional audio that’s more accurate than ever before. Including convincing externalization, a realistic sense of space, accurate acoustical characteristics of different audio objects, correct distance and location, and more.

Dirac VR allows for dynamic positioning on both the horizontal and vertical planes–generating a 360° “audio sphere” around each user in which sound can move freely in all directions. Users will be able to experience, for instance, the sensation of whipping wind as it swirls around their head, or as an airplane arrives and departs on a tarmac.

Dirac VR 1.png

VR/AR Possibilities for Gaming, Movies and Teleconferencing


Whether users are playing games, watching movies or holding team meetings at a distance, they can always benefit from Dirac VR. The technology is now ready for integration by device manufacturers, software suppliers, and content providers. Contact us to learn more about integrating Dirac VR in your products.

•      Headphone manufacturers

•      AR/VR device manufacturers

•      Chip manufacturers

•      Smartphone OEM’s

•      Game producers

•      Teleconference system providers


High Power, Memory and Processing Efficiency

As the leading provider of audio post-processing algorithms for the smartphone industry, we have a unique know-how when it comes to low power implementations of high-end audio technology. The processing algorithms used for Dirac VR have been optimized for extremely low CPU and memory consumption, and high-resolution minimum-latency tracking of micro head-movements. The technology is optimized for battery-limited mobile devices, while at the same time enabling the highest possible sound performance.


This Swedish audio research company might just change the way people experience VR.

– Jordan O'Brien, Associate Editor, CE Pro Europe


Dirac's demo of technology destined for virtual reality use was convincing. 

 – Mark Fleischmann, Sound & Vision


Virtual Reality Gets Real At CES 2017 With The Launch of Dirac VR 

A final frontier in making virtual reality real will be crossed at CES 2017 when Dirac Research, the global leader in platform-optimized sound enhancement technology, introduces its Dirac VR platform featuring patent-pending dynamic HRTFs. Read the news →

Dirac Achieves Major Breakthrough in 3D Audio with First AR/VR Platform Utilizing Dynamic HRTF Technology

Dirac Research today removed a major barrier to a truly immersive AR/VR experience with the introduction of its "Dynamic 3D Audio" AR/VR platform featuring patent-pending dynamic HRTFs  Read the news →


Media Coverage

Residential Systems,  Feb 2, 2017

DSP at CES, And Other Audio Trends

"The system corrects the unnatural, overly localized audio inherent in headphones, by positioning a phantom image in front of the listener, where it remains as the point source, even when the listener rotates his or her head. The sound opens up as if you're listening to speakers, rather than from headphones." Read the article

Digital Trends, Feb 28, 2017

This crazy audio software can make your smartphone sound like a Hi-Fi system

"Swedish audio company prefers to operate under the radar, partnering with smartphone makers like Huawei, Oppo, Xiaomi, and OnePlus, high-end auto manufacturers like Rolls Royce and Volvo, and home theater brands to enhance their products’ speakers with algorithms. But at Mobile World Congress in Barcelona, it stepped into the limelight with three demos that left us speechless."  Read the article


Secrets of Home Theater and High Fidelity, Jan 8, 2017

CES 2017 Show Report Day 4 Coverage

As I listened through the phones and turned my head, the performance stayed fixed in the same spot but it was as if I had turned in a real performance and it was effectively simulated. It was eerily convincing. Read the article

InnerFidelity, Jan 16, 2017

CES 2017: DIRAC VR Dynamic 3D Audio

How good was the demo? I'd say quite good. Very often I hear what I can only call a squeaky character in the treble. I felt the Dirac system was just more natural sounding than many I've heard.

 Read the article  


CE Pro Europe, Dec 22, 2016

 VR Audio Reimagined

This Swedish audio research company might just change the way people experience VR. Instead of just listening to the audio in a 3D environment, users may finally get the chance to immerse themselves in the fantasy – whether it be through visuals, interactivity or audio. Read the article


Related Dirac blog posts

In HiFi, Virtual Reality Might Be Better Than Reality

How can you achieve the perfect listening room without spending upwards of $100,000 and without even treating the room? Try a pair of headphones. And the sound system I’m referring to? It’s a virtual HiFi system. Read the post  


How to Make Headphones Stereo-Compatible

Have you ever wondered why music sounds so different on headphones compared to loudspeakers? It’s because, by design, headphones are not technically compatible with the stereophonic system. Read the post