Noise control
Sound insulation and noise control encompass all measures designed to reduce the transmission and propagation of sound and thereby minimize noise. They play an important role wherever disruptive noise needs to be reduced, acoustic conditions improved, or legal noise protection requirements met.
Sound insulation and noise control are used in a wide range of areas, including industry, mechanical and plant engineering, automotive and rail vehicle manufacturing, medical technology, buildings, and room acoustics. Depending on the application, different materials and technical measures are used.What Is Sound Insulation and Noise Control?
Sound is generated by vibrations and can propagate in different ways. A basic distinction is made between airborne sound and structure-borne sound.
Airborne sound propagates through the air. Examples include voices, music, or noises from machines and vehicles. When sound hits walls, housings, or other components, it can cause them to vibrate and thereby transmit the sound further. Structure-borne sound, on the other hand, propagates through solid materials. Vibrations generated by machines, motors, or building components can be absorbed by the structure and transmitted through the construction. Impact sound is also classified as structure-borne sound: when a floor is walked on, vibrations are generated that can spread through ceilings and walls. Effective noise control therefore aims to address the sound source, the transmission path, and the sound receiver as specifically as possible.How Does Sound Insulation and Noise Control Work?
Various measures are available for effective noise control. The most important include sound insulation, sound absorption, and structure-borne sound decoupling.
Sound insulation reduces the transmission of sound from one area to another. Materials such as heavy sound-insulating foils or multilayer insulation systems can be used for this purpose. They make it more difficult for sound to pass through components and structures. Sound absorption takes a different approach. Sound-absorbing materials such as acoustic foams or acoustic nonwovens absorb part of the sound energy through their open-cell structure. This reduces sound reflections and reverberation. Particularly in rooms, machine enclosures, and housings, this can significantly improve the acoustic environment. Structure-borne sound decoupling involves mechanically separating vibrating components from one another. This helps prevent vibrations and structure-borne sound from being transmitted through machines, housings, pipelines, or building structures. In practice, these measures are often combined.Why Is Sound Insulation and Noise Control Important?
High noise exposure can impair communication and concentration and can become a significant burden in everyday life and at the workplace. Prolonged exposure to high noise levels can also have health effects. Targeted noise control therefore helps make working and living environments more pleasant and reduce acoustic exposure.
In production halls, workshops, and machine rooms, machines, tools, motors, and production processes can generate high noise levels. An appropriate combination of sound insulation, sound absorption, and structure-borne sound decoupling can help reduce noise exposure and improve acoustic conditions in the workplace. Another important area is room acoustics. Particularly in offices, meeting and conference rooms, schools, daycare centers, kindergartens, canteens, restaurants, and public facilities, targeted sound absorption can reduce reverberation and improve speech intelligibility. Acoustic solutions are also used in large spaces such as sports halls and event venues to create a more pleasant sound environment and increase acoustic comfort. Different solutions are available, including wall and ceiling absorbers, suspended ceiling inserts, acoustic baffles, acoustic panels, and freestanding acoustic elements such as partition walls or room dividers. Depending on the room and application, these solutions can be combined to optimize room acoustics in a targeted manner. In addition, sound insulation and noise control can help meet legal noise protection requirements and reduce noise emissions.Sound Insulation and Noise Control in Different Applications
The requirements for sound insulation and noise control vary depending on the field of application. Accordingly, different materials and construction principles are used.
Typical applications include: • Mechanical engineering: Sound insulation and sound absorption for machine rooms, machine enclosures, housings, and covers• Buses & commercial vehicles: Reduction of engine, driving, and operating noise, as well as thermal solutions for electric vehicles
• Rail vehicles: Acoustic and thermal solutions for walls and floors, as well as climate control and ventilation areas
• Construction and agricultural machinery: Robust sound-insulating materials for demanding operating conditions
• Heat pumps: Sound absorbers and insulation systems for reducing operating noise
• Medical technology: Acoustic solutions for diagnostic equipment and laboratory technology
• Cabins, enclosures, and covers: Acoustic linings for machine housings and soundproof cabins
• Rooms: Sound absorbers and acoustic solutions for reducing reflections and reverberation
Sound Insulation and Room Acoustics
Sound insulation and room acoustics pursue different but interconnected objectives.
While sound insulation primarily focuses on reducing the transmission of sound between different areas, room acoustics deals with the propagation of sound within a room. Sound-absorbing elements on walls or ceilings absorb sound waves and reduce disruptive reflections and reverberation. This can improve speech intelligibility and acoustic comfort. Such measures are used, among other places, in offices, conference rooms, schools, kindergartens, production halls, public buildings, and residential spaces.Which Materials Are Used for Sound Insulation and Noise Control?
Depending on the requirements, different materials are used. These include, among others:
• Heavy sound-insulating foils to reduce sound transmission• Acoustic foams to absorb sound energy
• Acoustic nonwovens and fleece materials for sound absorption and acoustic optimization
• Composite materials combining sound-insulating and sound-damping properties The most suitable material depends on factors such as the sound source, frequency range, construction, and the respective environmental conditions.
Planning Sound Insulation and Noise Control Effectively
Effective noise control should always be tailored to the specific situation. Important factors include the type and intensity of the sound source, the transmission path, the relevant frequency ranges, as well as the structural and technical requirements.
A professional noise control solution therefore considers not only the material used but the entire acoustic system. Depending on the application, a combination of sound insulation, sound absorption, and structure-borne sound decoupling may be required. When properly planned, sound insulation and noise control help reduce noise in a targeted manner, improve acoustics, and sustainably increase comfort in working, residential, and technical environments.
soni COLOR
€35.90*
soni COLOR – Coloured acoustic absorbers for modern interior design and optimal acoustics
Acoustic panels from soniflex: Design meets function
The soni COLOR acoustic absorber consists of a high-quality white polyester non-woven laminated with a finely structured felt surface in attractive, trendy colours. This combines aesthetic design and effective sound absorption to create the perfect solution for rooms where a feel-good atmosphere and acoustics are equally important.
With decorative soni COLOR acoustic panels, you can create pleasant room acoustics in offices, nurseries, classrooms, meeting rooms or living areas, improving concentration, communication and comfort.
Pleasant room acoustics with style
The combination of sound-absorbing non-woven and open-pored felt surface effectively absorbs sound and significantly reduces reverberation. For a noticeable improvement in room acoustics, we recommend covering 30–50% of the wall or ceiling surfaces with soni COLOR. Even distribution of the panels ensures a harmonious sound and a significantly quieter room effect.
Safety through tested fire protection
soni COLOR meets the fire standards required for the construction sector in accordance with the European standard DIN EN ISO 13501. This makes the acoustic absorber safe, durable and versatile – even in public or commercial spaces with strict fire safety requirements.
Ideal for:
✔ Offices and meeting rooms
✔ Classrooms and educational spaces
✔ Living rooms and hallways
✔ Kindergartens, medical practices and public buildings
Easy installation – flexible and clean
Installing soni COLOR acoustic panels is incredibly easy:
✔ With our soni SPECIAL ADHESIVE, you can securely attach the panels to smooth, clean surfaces.
✔ If you do not want to cover the entire surface, we recommend soni VELCRO TAPE – ideal for flexible wall mounting (not suitable for ceiling mounting).
This allows you to design your rooms quickly, cleanly and individually – without any great effort.
Advantages of soni COLOR at a glance
✔ Effective sound absorption for noticeably better room acoustics
✔ Decorative felt surface in modern, trendy colours
✔ Complies with fire standard DIN EN ISO 13501
✔ Easy installation with adhesive or Velcro tape
✔ High-quality polyester fleece, durable and dimensionally stable
✔ Ideal for offices, schools, practices, living spaces and public buildings
Content: 0.5 m² (€71.80* / 1 m²)
soni COLOR RD
€25.80*
soni COLOR RD – Acoustic inserts for grid ceilings
soni COLOR RD is our high-quality acoustic insert for grid ceilings measuring 620 x 620 mm, which can be easily inserted into existing suspended standard grid ceilings or Odenwald ceilings (OWA). The elements consist of a sound-absorbing white polyester fleece, laminated with a thin, mottled felt surface in current trend colours. They thus combine aesthetic design and effective sound absorption in one product.
Grid ceilings – function and advantages
Grid ceilings consist of inserts in a supporting grid and are mainly used in offices, schools, medical practices, restaurants and public buildings. They enable flexible room design, easy access to cables and the integration of lighting, ventilation or acoustic elements.
A common problem with grid ceilings is excessive reverberation, as the smooth ceiling surfaces reflect sound. soni COLOR RD noticeably reduces reverberation and noise levels, creating quiet, pleasant working and learning environments.
Effective room acoustics with soni COLOR RD
soni COLOR RD acoustic elements significantly reduce the sound level in a room and help to improve room acoustics in offices, meeting rooms or doctors' surgeries. soni COLOR RD is also a proven acoustic element for noise reduction in schools, daycare centres and nurseries.
soni COLOR RD acoustic elements significantly improve room acoustics, reduce disturbing noises and increase speech intelligibility. They are ideal for:
✔ Offices & meeting rooms – less noise, better concentration
✔ Medical practices & care facilities – more pleasant room climate for patients and staff
✔ Schools, daycare centres & nurseries – targeted noise reduction for concentrated learning
✔ Restaurants & canteens – quieter atmosphere for guests
✔ Home offices & living spaces – comfortable, relaxed environment
Fire protection and standards
soni COLOR RD complies with the fire standards required for the construction industry in accordance with DIN EN ISO 13501-1. This means that the acoustic elements can be used safely in ceilings and as wall cladding – wherever fire protection regulations must be observed.
Installation instructions – flexible and simple
✔ Installation in grid ceilings: The elements are simply inserted into the grid ceiling – no additional fastening is necessary.
✔ As wall absorbers: For installation on smooth, clean surfaces, we recommend our soni SPECIAL ADHESIVE
✔ Alternative installation: soni VELCRO TAPE can be used for removable fastening. Note: Only suitable for wall mounting, not for ceilings
✔ Or with WIKO spray adhesive, which is also very well suited for installing wall absorbers
Design meets function
Thanks to its modern felt surface and wide range of colour options, soni COLOR RD can be creatively integrated into any interior design. This harmoniously combines acoustic measures and interior design, ensuring a pleasant noise level in offices, educational institutions and catering establishments.
Content: 0.384 m² (€67.19* / 1 m²)
soni COMFORT
€17.90*
soni COMFORT is a very hard-wearing sound absorber made of a white PES non-woven fabric with exceptionally good sound-absorption capacity. In addition, soni COMFORT offers excellent fire-resistance values.
soni COMFORT has been tested successfully according to the DIN 4102 fire safety standard and is classified as fire-retardant (B1). Therefore it is the material of choice for all applications requiring both an effective noise reduction and full compliance with fire safety regulations. When used as a ceiling element, soni COMFORT also fulfills the impact-resistance requirements according to DIN 18032-3 and is ideally suited for use in sports facilities and gymnasiums.
What is more, soni COMFORT is aging-resistant, free of mineral fibers and physiologically perfectly safe. All this makes soni COMFORT a true all-rounder for effective sound-conditioning measures in a wide variety of room types.
For covering entire wall or ceiling surfaces we recommend using soni COMFORT F. While soni COMFORT has plain edges, soni COMFORT F has beveled edges all around (10 x 10 mm), creating a beautiful visual effect when installed edge to edge. Additional advantage: The resulting pattern helps conceal any uneven patches on the ceiling or wall.
If necessary, soni COMFORT and soni COMFORT F can be cut to the desired size and shape with a carpet knife or a keyhole saw with a blade suited to cutting soft materials. For fixing the absorber panels on the wall or ceiling we recommend our soni SPECIAL ADHESIVE, our soni VELCRO tape or our soni RING HANGER.
Content: 0.5 m² (€35.80* / 1 m²)
Variants from €19.60*
soni ELEMENT
From
€7.90*
soni ELEMENT is a range of charming acoustic elements for effective noise absorption and sound-conditioning. They consist of a white polyester non-woven, optionally laminated with a decorative felt material in modern trend colors. Designed for wall mounting, the noise absorbers are available in different sizes and a wide variety of shapes – for customized room decoration in line with your individual design concept and ideas.For a noticeable improvement of the room's acoustics, we recommend lining 30-50 % of the ceiling/wall surfaces with the acoustic material, preferably evenly distributed across the room for the best result. This will reduce the overall reverberation level. The installation of soni ELEMENT improves speech intelligibility, resulting in a more pleasant atmosphere and a lower noise level in day-care centers, kindergartens and schools etc.soni ELEMENT fulfills the fire safety standards set down in DIN EN ISO 13501 and DIN 4102 (flame-retardant) for the construction industry. This means you can use soni ELEMENT absorbers as decorative and functional wall and ceiling elements wherever you need to reduce the noise level with materials that meet strict fire safety regulations.soni ELEMENT absorbers can be fixed on smooth and clean surfaces with our soni SPECIAL ADHESIVE. If you do not wish to use glue on the entire surface, we suggest using our soni VELCRO tape as an alternative fixation method. Please note: The soni VELCRO tape is only suitable for wall mounting, not for ceiling mounting.The exact size of the noise absorber elements depends on the shape chosen.The large element (for soni ELEMENT TRAIN the locomotive) has dimensions of up to 1,000 x 600 mm, the small one (for soni ELEMENT TRAIN the train wagon) of up to 600 x 450 mm.
soni ELEMENT Cloud
From
€12.90*
Our sound absorbers in cloud form
Our soni ELEMENT Clouds are beautifully designed acoustic elements for sound absorption and optimization of the acoustic conditions is rooms. They consist of a white polyester non-woven, optionally laminated with a decorative felt material in modern trend colors. Designed for wall mounting, the noise absorbers are available in different sizes and a wide variety of shapes – for custom-tailored room decoration in line with your individual design concept and ideas.
Why cloud shapes?
The cloud-shaped elements are a graceful alternative to the traditional, austere look of many acoustic products and bring a touch of lightness into your interior design. The organic shape ensures that the elements blend seamlessly into any setting - whether as a single accent or as an entire "flock of clouds". The different sizes and arrangement options can be used to create an individual look that effectively optimizes acoustic conditions and provides visual inspiration.
Advantages of our acoustic Clouds
Effective sound absorption:
The high-quality sound-absorbing materials of our wall elements ensure a significant reduction in reverberation and distracting noises. They create a quiet, pleasant environment that supports conversation, concentration and relaxation.
Flexibility in room design:
The cloud elements can be mounted on the wall or ceiling in various heights and configurations, creating ever new designs and room moods.
Lightweight and easy to install:
The cloud elements are made of lightweight, high-quality acoustic material and are easy to install.
Versatile application:
Whether as a highlight in living areas or for noise protection in offices and daycare centers - the cloud elements fit in flexibly and their decorative, friendly shape makes them particularly suitable for children’s areas.
For a noticeable improvement of the room's acoustics, we recommend lining about 30-50 % of the ceiling/wall surfaces with the acoustic absorbers, preferably evenly distributed across the room for the best result. This will reduce the overall reverberation level. The use of soni ELEMENT Cloud improves speech intelligibility, which leads to a more pleasant atmosphere and a lower noise level, especially in daycare centers, kindergartens and schools.
soni ELEMENT Cloud meets the fire standards for the construction sector in accordance with DIN EN ISO 13501 and DIN 4102 (flame-retardant). This means you can use soni ELEMENT Cloud on your walls without reservation wherever you wish to reduce noise levels and need to meet fire protection regulations at the same time.
To attach soni ELEMENT Cloud to smooth and clean surfaces, we recommend our soni SPECIAL ADHESIVE. If you do not wish to use glue on the entire surface, we suggest using our soni VELCRO TAPE as an alternative fixation method. Please note: The soni VELCRO TAPE is only suitable for wall mounting, not for ceiling mounting.
soni ELEMENT Flora
€33.90*
soni ELEMENT Flora combines effective sound absorption with a calm, soft appearance. Inspired by the natural aesthetics of a flower, this motif acoustic absorber adds stylish accents while noticeably improving room acoustics. Whether in the office, home office, living area or public spaces, soni ELEMENT Flora creates a pleasantly calm atmosphere and increases well-being.
Made from high-quality polyester non-woven with modern felt surfaces, the absorber impresses not only with its acoustic performance but also with its decorative effect. Even partial coverage of wall or ceiling surfaces reduces reverberation, improves speech intelligibility and lowers the overall noise level.
soni FLORA is particularly versatile thanks to the selection of several trendy felt surfaces. This allows the element to be perfectly adapted to different interior styles – from minimalist and modern to warm and cosy. Individual elements act as elegant eye-catchers, while creative combinations enable individual wall design.
Installing soni FLORA is particularly easy and efficient. For secure attachment to smooth and clean surfaces, we recommend our soni SPECIAL ADHESIVE or, alternatively, soni WIKO spray adhesive, both of which ensure reliable and permanent adhesion. If full-surface bonding is not desired, soni VELCRO tape offers a flexible solution with a secure hold. Please note: soni VELCRO
tape is only suitable for wall mounting and should not be used on ceilings – this ensures that soni FLORA remains versatile and optimally adapted to different requirements.
soni FLORA – for rooms that sound good and look great.
Variants from €16.90*
soni ELEMENT Star
From
€12.90*
With soni ELEMENT Star, you can bring calm and decorative accents to your walls. The star-shaped sound absorber is made of white polyester nonwoven fabric and is available, upon request, with colored decorative felt in modern, trendy colors. This allows you to specifically improve room acoustics while creating a friendly, personalized interior design. The star adds beautiful visual accents, especially in daycare centers, preschools, and schools.
To ensure sound absorbers are as effective as possible, we recommend covering approximately 30–50% of wall and ceiling surfaces with acoustic elements. Distributing them as evenly as possible helps reduce reverberation and make conversations easier to understand. The result: more pleasant room acoustics, less disruptive noise, and better conditions for learning, playing, and working.
The soni ELEMENT Star is also designed for use in the construction sector with regard to fire safety. The acoustic element meets the relevant requirements in accordance with DIN EN 13501-1 and DIN 4102 (flame-retardant). This makes it suitable for rooms where, in addition to good acoustics, applicable fire safety regulations must also be taken into account.
Our soni SPECIAL ADHESIVE or WIKO spray adhesive is suitable for mounting on smooth, clean surfaces. If you’d prefer to attach the star without covering the entire surface with adhesive, you can use soni VELCRO TAPE as an alternative. Please note that the Velcro tape is intended exclusively for wall mounting and must not be used to attach the star to the ceiling.
soni ELEMENT TRAIN Set
€63.90*
soni ELEMENT TRAIN – Acoustic elements for creative interior design
With soni ELEMENT TRAIN, you can combine improved room acoustics with child-friendly wall design. These elegantly designed sound absorbers are made from white polyester fleece and are covered with decorative felt in cheerful colours. The locomotive and its carriages create a friendly atmosphere and make a real eye-catcher in nurseries, kindergartens, schools or children’s bedrooms.
The standard set offered here consists of one locomotive and two carriages, and can be extended with additional carriages as required: soni ELEMENT TRAIN small. This allows you to customise the train and decorate your wall space exactly as you wish.
Decoration tip
In some schools and nurseries, the train is used as a birthday calendar: each of the twelve carriages provides space for photos of the children whose birthdays fall in that month. This turns the train into a personalised wall decoration that not only improves the room’s acoustics but also provides a lovely overview of birthdays in the classroom or group room.
How to improve room acoustics in nurseries, kindergartens or schools
To achieve a noticeable improvement in room acoustics, we recommend fitting sound absorbers to around 30–50 per cent of the ceiling and wall surfaces in a room. It is not necessary to cover all surfaces. What is more important is to distribute the acoustic elements as evenly as possible throughout the room, so that sound is absorbed at various points and reverberates for a shorter time.
The result: more pleasant room acoustics, better speech intelligibility and a quieter learning and play environment – particularly in nurseries, kindergartens and schools.
soni ELEMENT TRAIN meets the relevant fire performance requirements in accordance with the classifications set out in EN 13501-1 and DIN 4102. Please refer to the product-specific information on fire safety and the respective scope of application.
To fix soni ELEMENT TRAIN to smooth and clean surfaces, we recommend our soni SPECIAL ADHESIVE or our soni WIKO spray adhesive. If you do not wish to adhere the elements over their entire surface, soni VELCRO TAPE offers a practical alternative for wall mounting. Please note that the Velcro tape is not suitable for ceiling mounting.
Size of the designs:
Locomotive: approx 1000 × 600 mm
Carriages: approx 600 × 450 mm
soni PROTECT
From
€17.50*
Out soni PROTECT noise absorber is made from an open-cell melamine foam (Basotect®) with outstanding sound-absorption capacity. Use soni PROTECT to significantly improve the acoustic conditions in interior spaces. With soni PROTECT acoustic panels fixed to ceilings and walls, your room will be much less reverberant.
soni PROTECT has been tested successfully according to European as well as German fire safety standards and can therefore be used wherever you need to reduce the noise level with materials that meet strict fire safety regulations.
What is more, soni PROTECT is aging-resistant, free of mineral fibers and physiologically perfectly safe. All in all, an absolute classic for optimizing acoustics conditions in buildings.
For edge-to-edge installation we recommend using soni PROTECT F. It consists of the same material as soni PROTECT, but has beveled edges all around, which make for very neat joints and an attractive surface design while actually helping conceal any uneven patches in the ceiling or wall surface. Please note: We do not recommend soni PROTECT for use on wall areas that are liable to be hit or touched, as the sound insulation panels are sensitive to mechanical stress.
soni PROTECT and soni PROTECT F can easily be cut to the desired size with a carpet knife. For fixing the absorber panels on the wall or ceiling we recommend our soni SPECIAL ADHESIVE.
Basotect® is a registered trade mark of BASF SE.
Content: 0.5 m² (€0.00* / 1 m²)
soni PROTECT Art
€49.90*
soni PROTECT Art is a highly efficient acoustic panel made of an open-cell melamine foam (Basotect®). The sound absorber soni PROTECT Art convinces with exceptionally good absorption properties and a visually very appealing design. The relief-like surface offers an enlarged absorber area and thus improves the room acoustics enormously.With edge-to-edge installation or combined with our soni PROTECT panels, unique stylish and visually appealing wall motifs can be created. soni PROTECT Art combines a sophisticated look with effective sound reduction.soni PROTECT Art has been tested successfully according to European and German fire safety standards and can therefore be used wherever you need to reduce the noise level with materials that meet strict fire safety regulations.In addition, soni PROTECT Art is highly resistant to ageing, free of mineral fibres and physiologically perfectly safe.
Content: 0.5 m² (€99.80* / 1 m²)
Variants from €29.90*
soni RESIST
From
€17.90*
Ordering acoustic panels from soniflex
Our soni RESIST noise protection panel consists of closed-cell polyethylene foam with both sound-insulating and sound-absorbing properties. Its closed-cell structure makes soni RESIST especially suitable for applications where it may come into contact with moisture or humidity. The extremely robust and impact-resistant sound-insulation material does not constitute a medium for microorganism growth and can be wet-cleaned if necessary.
soni RESIST is flame-retardant according to DIN 4102, as proven under B1 test conditions. Therefore the product is an excellent noise-control solution wherever you need to reduce the sound level with materials that meet strict fire safety regulations.
Furthermore, soni RESIST ceiling and wall elements meet the ball impact resistance requirements of DIN 18032-3, making them ideal for noise reduction in sports halls and sports halls.
The use of soni RESIST
The optional self-adhesive rear face facilitates the installation of the panels. When mounted overhead or on uneven surfaces, (additional) mechanical fixation is required.
Content: 0.5 m² (€27.80* / 1 m²)