The Problem
Low-frequency noise is one of acoustics’ hardest problems — and one that foam, insulation, and other traditional materials have never truly solved. These deep vibrations travel through walls, ducts, and cabins, shaping how people experience comfort, quiet, and quality.
Passive materials can muffle higher-frequency sound, but at deeper tones they become too bulky, heavy, and inefficient. Conventional active noise cancellation, like that used in headphones, works only in simple one-point spaces, not in real environments.
In the real world, noise spreads in three dimensions — diffuse, dynamic, and constantly changing. Neither passive barriers nor standard active systems can stop it, leaving a critical gap in controlling low-frequency sound where people live, work, and move.
The Breakthrough
Plasmacoustic Platform
Sonexos has developed the world’s first Plasmacoustic® platform — a patented, solid-state system that delivers active, low-frequency noise reduction in real, three-dimensional environments where conventional materials fail. It replaces bulky passive components with a lightweight, adaptive layer that absorbs low-frequency noise actively and efficiently
Plasmadrive™
The core component that converts cold atmospheric plasma into controllable acoustic pressure.
Plasmacoustic Metalayer®
An AI-enabled control layer that shapes the plasma field to dynamically adapt to acoustic conditions.
Plasmapanel®
A product-integrated panel designed for scalable manufacturing.
Market Focus
Where Noise Matters Most.
Our initial focus is on ventilation systems — the most widespread source of low-frequency noise in homes, workplaces, and vehicles. This includes the hum of HVAC units, the rumble of kitchen rangehoods and clothes dryers, and the steady drone of air-delivery systems in cars and mass transport.
From there, our technology naturally extends to cabin-interior noise reduction in premium vehicles, commercial buildings, and industrial environments, where silence enhances comfort and perceived quality.
Looking ahead, we are also exploring partnerships in aviation and defence, where compact, reliable low-frequency control has the potential to transform safety, comfort, and situational awareness.
Domestic Appliances
Domestic & Commercial HVAC
Transportation HVAC
Cabin & Interior Environments
Why Sonexos
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Why Partner With Sonexos.
Sonexos is Execution-Ready
After four years of focused R&D, Sonexos’ Gen-I Plasmapanel® is now being evaluated across multiple industries, while the Gen-II platform is advancing toward high-volume manufacturing. The company holds a growing portfolio of granted and pending patents spanning plasma-based active absorption, plasma physics, materials, and system integration, securing both freedom to operate and a strong foundation for commercial scaling.
We Bring Deep Expertise
The Sonexos team brings together deep expertise in acoustics, high-voltage electronics, materials science, and adaptive software — disciplines that define the next generation of active-acoustic control. With a proven record in taking complex technologies from concept to industrial scale, we are uniquely positioned to commercialise plasmacoustic solutions with OEM partners worldwide.
Our Roadmap is Ambitious
AI-driven performance, miniaturisation through advanced electrode design, and next-generation packaging will scale the technology to mass markets. And because our panels are lightweight and durable, they deliver a clear sustainability advantage—cutting material use and energy consumption compared to bulky conventional noise treatments.
About Sonexos
Who we are
Sonexos is pioneering plasma-based noise control, transforming how the world eliminates unwanted low-frequency sound in real environments.
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Lausanne, Switzerland
Corporate HQ & Plasma R&D
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Milan, Italy
Operations Centre
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Auckland, New Zealand
Research Centre, High Voltage Drive
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San Jose, USA
Sales & Marketing, North America
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Hong Kong, China
Sales & Marketing, APAC
