Zero Reflection
Open and soft sound-absorber technology enables noise reduction effect far beyond industry standards.
Light weight
Easy to handle and no additional burden on existing construction assure rapid mounting and versatile application.
Intelligent design
Smart design and material shaping attributes to the outstanding system performance.
Sustainability
We offer a solutions that really take the environment into account from lower Co2 emmission to noise pollution.
CALMA-TEC noise protection systems background
Over 25 years of working on noise abatement technology
CALMA-TEC has dedicated significant time and resources to developing noise-abatement technologies for the road and rail sectors. In 1999, the first curved (outward-bent) wall was constructed, marking a paradigm shift in noise barrier design. Several iterations followed, culminating in solutions capable of withstanding even the extreme dynamic loads of high-speed trains. The breakthrough was achieved through the combination of open absorber technology and smart structural shaping. PIN is CALMA-TEC’s innovative top-mounted element that significantly enhances the performance of noise barriers, representing the company’s key contribution to reducing road and rail noise.
Our product
PIN noise-spoiler
is a highly engineered top element that enhances the acoustic performance of noise barriers by combining aerodynamic design with open absorber technology.
Highly effective and easy to install
PIN significantly boosts noise reduction performance and can be easily mounted on existing or new barriers without complex modifications.
Certified +6 dB noise reduction.
50cm PIN equal 1,5m of additional noise barrier.
Maximizes the performance of existing noise barriers
Retrofit current wall installations with PIN to achieve higher acoustic efficiency and modernize older and insufficient walls with minimal effort.
No need to change foundations, pillars or rebuild existing noise barriers. Only
Reduces barrier height and material costs
With PIN’s smart design, required wall heights can be built lower, saving materials, space, and construction costs — while delivering top performance.
And to be honest, isn’t the best noise-barrier is the one you cannot see.
Open absorber technology for zero reflection
Acoustic engineers have long sought effective ways to make unwanted noise disappear. Outdoor noise abatement poses unique challenges, as sound waves disperse freely and any absorbing system must withstand wind and weather. CALMA-TEC pioneered the use of open absorber technology for road and railway applications — setting new benchmarks and exceeding all existing standards.
The shape makes a difference
CALMA-TEC started off with it’s first barrier with a curved bent away from the noise source. Due to the reduction of the angle of the noise shadow the shielding effect was higher than with any other straight wall. This principle was developped further and perfectioned in PIN noise-spoiler. It’s
Our principles at work
Our projects in action
Trusted by clients — proven in the field.
PIN A2 Laxenburg (AUSTRIA)
Pilot project in cooperation with the Austrian highway company ASFINAG comparing various top barrier elements. Results proof an increase of noise shielding between 3,5 and 4,8 dB(A) in 25, 50 and 75m behind the wall.
DB Rosenheim (GERMANY)
First application of PIN in cooperation with Deutsche Bahn. Several noise abatement technologies were tested in real life application. Noise reduction up to 4 dB(A) through PIN were confirmed
A54 Velp (NETHERLANDS)
In the Netherlands CALMA-TEC PIN was delivered in grey colour as requested by the clients. Present material developments will enable PIN in several colours although we have known that black is the most popular because it is almost invisible.
PIN rail application (ISRAEL)
PIN was tested on railway lines in Israel, demonstrating excellent performance under harsh climate conditions and high-speed train traffic. Measurements confirmed reliable noise reduction and mechanical stability.
M0 Budapest (HUNGARY)
PIN was implemented along the M0 ring road in Budapest to enhance existing barriers. The project demonstrated a noticeable improvement in noise reduction for residential areas located close to heavy traffic routes.
BuBe Railway (HUNGARY)
As part of this major international railway project, PIN was chosen for its durability and efficiency. The combination of acoustic performance and aesthetic integration contributed to a quieter and more pleasant rail corridor.
This is a small selection of projects on top of many research in-situ tests that have proven the effect of CALMA-TEC PIN system in real life application.
Our principles at work
We deliver a sound solution
At CALMA-TEC, we combine experience, expertise, and collaboration to turn complex noise abatement challenges into effective, reliable solutions.
Strong partnerships
We believe in trust and long-term collaboration — working exclusively with regional partners to ensure quality, reliability, and local expertise.
Solution focus
Every product we develop addresses real-world needs, with a clear focus on performance, durability, and easy implementation.
Innovation
Do you sometimes have the feeling that you’re running into the same obstacles over and over again? Many of my conflicts have the same feel to them, like “Hey, I think I’ve been here before“
Noise-protection is a sensitive issue. It affects people’s health!
We like to keep you posted
CALMA-TEC Noise Abatement Insights
Knowledge, technology, and solutions for a quieter world.
In this section, we share facts, background information, and proven approaches to noise reduction — combining scientific understanding with real-world applications and insights into some of our projects.
Connect with us
Contact us
Get in touch with us to learn how CALMA-TEC can enhance your noise barrier project with PIN. We look forward to discussing how our proven solutions can add value to your application.