Stereo is dead, long live DeepStereo! LESON, a spin-off from Music Unit, launches DeepStereo, a revolutionary plugin (VST, AAX, AU) that can transform any sound into a 3D immersive audio experience in real-time — without the need for specialized hardware or complex setup. The result of over a decade of R&D and based on patented technology, DeepStereo is compatible with all headphones, speakers, and soundbars. It ushers in a new era of sound creation and listening, where depth, clarity, and emotion become the norm. Audio immersion is now universally accessible and instant. In short, DeepStereo is the leap from mono to stereo… 2025 version. A 50-year-old dream finally becomes a reality.
A New Chapter for Immersive Sound
The 3D audio market is booming, but it has so far remained exclusive to large studios or closed ecosystems. With DeepStereo, LESON introduces a technology that upends these paradigms and goes beyond merely converting stereo formats into 3D audio. It answers a 50-year-old industry dream: to democratize immersive audio by making it simple, powerful, and universal.
Julien Chirol, co-founder of Music Unit and LESON: “We want DeepStereo to become what MP3 was for music or JPEG was for images: a universal, simple format compatible with all uses. With this technology, any sound content — even poorly recorded mono — can gain depth, width, and intensity. It’s an invisible revolution, but immediately perceptible to the ear: creators don’t have to change their tools or formats, and listeners rediscover what they were already listening to, with an unprecedented sense of immersion.”
Revolutionizing Audio Through Innovation
DeepStereo is based on patented technology developed over 12 years of research by LESON, in collaboration with prestigious institutions such as CNRS, École Polytechnique, and CNSMDP. At its core: MyBeeKnows, a patented binaural synthesis engine capable of replicating human hearing by mimicking the subtle time and tonal differences between the two ears. This process “tricks” the brain, enabling it to perceive realistic spatialization without signal degradation and without specialized hardware. The result: a stunning immersive experience using simple headphones or speakers.
Thanks to exclusive algorithms, DeepStereo offers ultra-accurate 3D audio transformation without artifacts or quality loss. Coupled with a “crosstalk cancellation” process that optimizes spatial perception on standard speakers, the technology ensures maximum compatibility with all existing audio formats (mono, stereo, 5.1, etc.). This simple yet powerful solution meets the demands of both the most discerning creators and audiophiles, blending technical performance with ease of use.
3D Audio Finally Accessible to All
Where 3D audio has previously been the domain of a tech-savvy elite, DeepStereo makes immersive sound accessible to all. For the user, it’s not just about widening the stereo space: DeepStereo recreates a vivid, enveloping soundstage, making you feel at the heart of the sound — all without changing devices or reconfiguring anything.
For creators, it’s an invisible yet immediately audible revolution: productions gain new dimension, video games become more immersive, and platforms enhance user experience without altering original files. Studios, labels, streaming platforms, and manufacturers can integrate DeepStereo into their existing workflows to amplify listening quality… and emotion.
Solid Milestones to Shape the Future of Sound
Unveiled in preview at CES Las Vegas, DeepStereo has already won over industry professionals. At the NAMM Show 2025, LESON officially announced a strategic partnership with Merry Electronics, a leading Taiwanese manufacturer in acoustics, to integrate DeepStereo into a range of consumer devices, from smartphones to embedded audio systems.
In France, the Cité de la Musique has adopted DeepStereo for the production and distribution of its audiovisual content. DeepStereo is also integrated into the Sonic HR by NOUS Digital, an immersive audio headset used in museums, offering unprecedented 3D spatialization for cultural tours.
In a nutshell:
- A patented technology, born from 12 years of R&D, that transforms any sound into a 3D immersive audio experience
- Natural, real-time spatialization, without specialized hardware or complex setup
- Universal compatibility: headphones, standard speakers, soundbars
- A simple yet powerful tool for creators, studios, platforms, and audio enthusiasts
More at https://musicunit.fr/.
ABOUT MUSIC UNIT
Music Unit is a creative studio that is revolutionizing the music and audio industry through technology and an innovative approach. Founded in 2004, we specialize in “haute couture” sound design. We bring together artists, programmers, and producers who are dedicated to offering the public the opportunity to experience groundbreaking artistic creations.
ABOUT LESON
Launched in 2014 and spin-off of Music UNIT, LESON is a sound creation studio disrupting the music and audio industry through creativity, innovation and technology. Our mission is to offer audiences the opportunity to live brand new artistic experiences. We are techno-artists (50% engineers / 50% musicians) who have chosen to pool their desires, knowledge and talents in order to develop their ability to create and innovate. We have strong skills in the emerging technologies: 3D Audio, Virtual and Augmented Reality, Immersivity. This explosive mix leads to detonating ideas, approaches and workflows.