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Treppenaufgang in einer Wohnung. An der Wand hängen Akustikelemente soni HEXAGON Room acoustics
  • Office | Callcenter
  • Hospitality facility | Lunchroom
  • Indoor swimming pool | Sports facility
  • Kindergarden | School
  • Waiting rooms | Doctor's office
  • Living space | Staircase
  • Clubhouse | Banquet hall
  • Sound studio | Rehearsal room
Produktionshallte mit Maschinen und einem Förderband. An der Wand hängen Akustikelemente soni COLOR. Technical noise control
  • Production hall | Workshop | Utility room
  • Machine | Compressor
  • Wall towards neighbors | Curtain wall
Einfamilienhaus mit Garten, Pool und Carport, im Carport steht ein Boot und ein Auto. Sound insulation in the outside area
  • Pool pump
  • Car | Motor | Boat
  • Heat pump | HVAC
  • Noise protection fence
Kindergarten, an der Wand hängen Akustikelemente in verschiedenen Tierformen. Sound absorption materials
  • Basotect | melamine foam
  • Polyester- / PES non-wovens
  • Polyurethane | PU foam
  • Egg crate foam / Pyramid foam
  • Colorful acoustic panels
  • Acoustic pictures
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  • Flame retardant
2 Kellerräume nebeneinander, die Wand dazwischen wurde mit Schalldämmmaterial von soniflex gedämmt. Sound insulation
  • Humid or wet conditions
  • For Outdoor area
  • Drywall construction | curtain wall
  • Sandwich panels
  • Compressor jacket
  • Door sound insulation
Produktionshallte mit Maschinen und einem Förderband. An der Wand hängen Akustikelemente soni COLOR. Heavy layers
  • Anti-drumming heavy layers
  • Bitumen heavy layer
  • Synthetic heavy layer
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  1. Lexicon
  2. A
  3. Attenuation/Damping
  • Noise control products
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Lexicon: A
Absorber
Absorption
Absorption coefficient
Acoustic elements
Acoustics
Air absorption
Air-borne sound
Air-borne sound attenuation
Air-borne sound insulation
Anechoic chamber/acoustically dead room
Attenuation/Damping
A B C D E F H I M N O P R S T U W
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A B C D E F H I M N O P R S T U W Start Page Table of Contents

Attenuation/Damping

(Sound) attenuation or dampening is the decrease in the level of air-borne sound through absorption: A certain proportion of the sound waves is transformed into heat energy and thus “lost”.
9 acoustic elements in different colors in the shape of a hexagon (soni ELEMENT HEXAGON) next to each other 9 acoustic elements in different colors in the shape of a hexagon (soni ELEMENT HEXAGON) next to each other
soni HEXAGON
soni HEXAGON is a hexagonal acoustic element for sound absorption and optimizing the acoustic conditions in buildings. It consists of a white polyester non-woven, laminated with a decorative felt layer in modern trend colors. Designed for wall mounting, the geometric noise-absorber shapes are available in two different thicknesses – for customized interior design in line with your concept and ideas. For a significant improvement of the room's acoustics, we recommend lining 30 to 50% of the ceiling/wall surface with sound absorbers, preferably evenly distributed across the room for the best result. By minimizing sound reverberation, soni HEXAGON lowers the overall noise level and improves speech intelligibility, making your office, call center, entrance area or conference room a much more pleasant place to stay.soni HEXAGON fulfills the fire safety standards set down in DIN EN ISO 13501 and DIN 4102 (flame-retardant) for the building sector. This means you can use soni HEXAGON absorbers as an attractive and functional wall decoration wherever you need to lower the noise level with materials that meet strict fire safety regulations.For fastening soni HEXAGON absorbers on smooth and clean surfaces, we recommend our soni SPECIAL ADHESIVE. If you do not wish to use glue on a large surface area, we suggest using our soni VELCRO TAPE as an alternative fixation method. 

Variants from €10.90*
From €13.90*
Details
3 sound insulation panels in size A4 in different colors 3 sound insulation panels in size A4 in different colors
soni COMPOSITE
soni COMPOSITE sound insulation mat – effective sound insulation and sound absorption in one product The soni COMPOSITE sound insulation mat from soniflex is a highly effective combination of sound insulation and sound absorption. This acoustic product consists of a heavy plastic film (soni EVA) and high-quality acoustic foam with a decorative felt surface. This intelligent combination of materials reduces both airborne and structure-borne noise, resulting in a noticeable reduction in noise levels – ideal for use in living spaces, offices, workshops or technical facilities. Double effect – sound absorption & sound insulation While the soni EVA heavy-duty film reliably reduces sound penetration, the open-pored acoustic foam layer absorbs the sound within the room. This dampens the noise at its source and prevents it from spreading – a real advantage over single-layer materials. Typical areas of application: ✔ Partition walls & neighbouring walls in flats and offices ✔ Machine cladding & engine rooms ✔ Workshops & technical rooms ✔ Suspended ceilings & drywall constructions ✔ Music rooms & recording studios Use of soni COMPOSITE – versatile & effective The soni COMPOSITE sound insulation mat is particularly suitable for soundproofing walls and ceilings. Installed, for example, on the wall separating you from your neighbours or behind a facing shell, the material significantly reduces disturbing noises and ensures pleasant room acoustics. Thanks to its decorative felt surface, soni COMPOSITE is available in a range of colours – ideal when function and design are equally important. Easy processing & secure installation Processing soni COMPOSITE is straightforward and does not require any special tools: ✔ The mat can be cut to size precisely using a craft knife or scissors. ✔ The self-adhesive backing serves as an installation aid – however, mechanical fastening (e.g. screws, press studs or strips) is recommended for permanent attachment,     especially on vertical surfaces or for ceiling installation. ✔ Ensure that the substrate is dry, dust-free and smooth to ensure optimum adhesion. If necessary, you can cut soni COMPOSITE to the desired size with a craft knife. The self-adhesive backing serves as an installation aid. Tip: To create a clean finish at the joints, you can cover them with a wooden strip (8–10 cm wide) – this ensures a neat appearance and provides additional support. Safety & quality – tested for professional use soni COMPOSITE materials are age-resistant, moisture-resistant and free of fibres that are harmful to health. This makes this sound insulation mat a durable and safe solution for effective noise protection in both private and commercial areas.

Content: 0.5 m² (€59.80* / 1 m²)

Variants from €34.20*
€29.90*
Details
White PES fleece panel, horizontal, with a mottled felt surface in the color red White PES fleece panel, horizontal, with a mottled felt surface in the color red
soni COLOR RD
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)

€25.80*
Details
Section of a PES fleece absorber with colored fleece surface, anthracite color Section of a PES fleece absorber with colored fleece surface, anthracite color
soni COLOR
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)

€35.90*
Details
Sound absorber in the form of a large and a small circle (soni ELEMENT CIRCLE) lying in the color orange against a gray background Sound absorber in the form of a large and a small circle (soni ELEMENT CIRCLE) lying in the color orange against a gray background
soni CIRCLE
soni CIRCLE – stylish acoustic absorbers & wall absorbers for better room acoustics With soni CIRCLE, you can bring aesthetic design and effective sound insulation into your rooms in one product. The circular acoustic absorber consists of high-quality white polyester non-woven laminated with decorative felt in modern, trendy colours. Thanks to its combination of functionality and design, soni CIRCLE can be seamlessly integrated into any interior design – whether in an office, meeting room, classroom, lobby or living room. Available in two different sizes, the round acoustic elements can be combined individually. This creates an attractive wall design that also reduces reverberation and ensures pleasant room acoustics. Improve room acoustics with soni CIRCLE wall absorbers Covering just 30% of the wall or ceiling area with our acoustic absorbers leads to a noticeable reduction in sound. Reverberation is reduced, voices sound clearer and conversations are easier to understand. Especially in open-plan offices, call centres, entrance areas, schools, nurseries, doctors' surgeries or meeting rooms, soni CIRCLE creates a calm, focused atmosphere and contributes significantly to well-being, concentration and productivity. Fire protection included – safe and stylish soni CIRCLE acoustic elements meet the relevant fire protection requirements in accordance with DIN EN ISO 13501 (flame retardant). This means that the wall absorbers are also suitable for public areas where fire safety regulations must be observed – such as office buildings, hotels, schools or cultural institutions. Easy installation – flexible and clean To attach soni CIRCLE, we recommend our soni SPECIAL ADHESIVE for permanent and secure attachment to smooth, clean surfaces. Alternatively, WIKO spray adhesive can also be used – ideal for quick, even and clean application. If you prefer a removable installation, our soni VELCRO TAPE is a suitable alternative – perfect for flexibly positioning the acoustic absorbers or replacing them if necessary. Design meets function – modern wall design with sound insulation from soniflex Whether used individually or as a creative wall composition in various sizes and colours, soni CIRCLE combines aesthetic design with functional sound insulation. The decorative wall absorbers add visual accents while absorbing unpleasant reverberation and sound reflections. This makes soni CIRCLE the ideal solution for anyone who wants to combine design and acoustic optimisation. Read the testimonials.

Variants from €6.90*
From €11.90*
Details
Section of a PUR foam panel with black foil surface Section of a PUR foam panel with black foil surface
soni 491 STL
soni 491 STL – Sound insulation board with heavy foil for effective wall and ceiling insulation Combined sound insulation and sound absorption in one product Our soni 491 STL sound insulation board is a highly effective PUR foam-based sound insulation product that is additionally combined with a heavy bitumen foil. The acoustic foam with sound-permeable foil ensures optimum sound absorption, while the bitumen layer effectively insulates and blocks sound. This intelligent combination of materials combines both sound insulation and sound absorption properties in a single product – ideal for anyone who wants to effectively reduce noise and create a quieter environment. Areas of application – versatile, efficient and reliable soni 491 STL is used wherever noise and sound transmission needs to be reduced – for example: ✔ Wall insulation between neighbouring flats ✔ Partition walls or ceilings in apartment buildings ✔ Technical rooms, machine rooms or workshops ✔ Cellars, garages and house walls The sound insulation board is ideal for retrofitting existing walls or ceilings with sound insulation – for example, by constructing a facing shell or cladding partition walls. Tip for constructing a facing shell: A facing shell is a very effective way of significantly improving wall insulation between neighbouring properties. Here's how to do it: 1. Attach battens: Attach 30 mm or 50 mm thick wooden battens to the wall. Use our soni NBR sealing tape to insert an elastic layer between the wall and the battens. This prevents sound bridges. 2. Insert sound insulation boards: Fill the gaps with soni 491 STL to achieve both sound insulation and sound absorption. 3. Attach cladding: Screw plasterboard or chipboard onto the battens. 4. Decoupling & joint sealing: Separate the construction from the floor, ceiling and adjacent walls with a small gap and seal the joints with acrylate for maximum insulation performance. Tip: In our experience report ‘Neighbourhood / facing shell’, you will find a practical example of how soni 491 STL can significantly improve the sound insulation of a wall. Alternative with visible surface: soni COMPOSITE If plasterboard cladding is too costly for you, we recommend our soni COMPOSITE as an alternative. This material combines sound insulation and sound absorption like soni 491 STL, but has a decorative felt surface in various colours – perfect for visible areas. Advantages of soni 491 STL at a glance ✔ Combined sound and heat insulation ✔ Heavy bitumen foil for high sound insulation ✔ PUR foam for strong sound absorption ✔ Wipeable, micro-perforated surface ✔ Self-adhesive and easy to process ✔ Effective noise reduction between neighbouring flats ✔ Ideal for facing shells, wall insulation, ceiling cladding ✔ Easy installation with a cutter knife and adhesive surface

Content: 0.5 m² (€41.80* / 1 m²)

€20.90*

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