Fabrics that set the tone

Acoustic fabrics

Sound-absorbing & flame-retardant

Glass, concrete and steel are materials that are indispensable in modern architecture. These smooth surfaces create a reverberation that is often perceived as unpleasant noise. Textiles can counteract this. They absorb sound and thus reduce noise pollution. They can also optimize the room acoustics in such a way that the sound is positively influenced. Whether in the workplace, restaurant, hotel room or theater, good room acoustics promote well-being, communication and performance. The possibilities for acoustic room design with textiles are many and varied. They can be used as curtains, drapes, room dividers, wall and ceiling coverings, panels or upholstery fabrics. With a comprehensive acoustic collection, DELIUS provides the peace and quiet that we need for our well-being at work and in our leisure time.

Akustik 0141
Akustik 0111
Akustik 0024
Moodboard acoustic
Akustik 0124
Akustik 0073 rot
Akustik 0095

Acoustics is the study of sound and its propagation

In principle, room acoustics are related to the sound in the room. The sound absorption coefficient, which describes the ability of a material to absorb sound, is measured for this purpose. This is measured in a reverberation room in accordance with DIN EN ISO 354 and divided into absorber classes A-E.

Akustik grafik en 2

Absorber classes

  • A = highly absorbent, weighted sound absorption coefficient αw: 0.90...1.0
  • B= highly absorbent, weighted sound absorption coefficient αw: 0.80...0.85
  • C = highly absorbent, weighted sound absorption coefficient αw: 0.60...0.75
  • D = absorbing, weighted sound absorption coefficient αw: 0.30...0.55
  • E = low absorbing, weighted sound absorption coefficient αw : 0.15...0.25
Reflection of the sound
Akustik sound absoprtion flat surface delius
Partial absorption of sound
Akustik sound absoprtion slightly porous delius
Absorption of sound
Akustik sound absoprtion highly porous delius

Fabrics that set the tone

The DELIUS acoustic collection covers the entire range of textile furnishings. It includes various blackout fabrics, plain fabrics with and without textures, exclusive velour, modern wool fabrics and transparent curtains.

Transparent acoustic fabrics
Translucent acoustic fabrics are a novelty on the contract market and offer completely new design options for offices, hotels and restaurants. When the curtain is closed, its sound-absorbing properties come into their own; at the same time, however, it also serves as privacy and glare protection. The natural daylight in the room creates a pleasant atmosphere. The curtains are available room-high (330 cm fabric width) and can therefore be made up seamlessly. Darkening fabrics
In addition to their darkening properties, dimout fabrics from DELIUS have excellent acoustic values. With a sound absorption coefficient of αw 0.65 / class C, they ensure pleasant quiet and darkness in hotel rooms, good room acoustics in conference rooms and the right lighting situation for projector presentations.

Velours & wool fabrics
Velours & wool fabrics are the classics among acoustic fabrics. Velours have a luxurious look and, thanks to their fluffy surface, the best acoustic properties. This is precisely why we find them so often in theaters and cinemas. Wool fabrics are in no way inferior. Those who prefer something more purist can use these sound absorbers.

Furniture fabrics
Furniture is also capable of absorbing sound. Fabrics with acoustic properties can further enhance this effect. Velour, wool fabrics and fabrics with textured surfaces are suitable as sound-absorbing upholstery fabrics.

Fabrics for acoustic panels / sound absorbers
Acoustic panels are available in a wide variety of designs; as room dividers, table stands, pin boards, ceiling suspensions, etc. Absorbers absorb up to 100% of sound waves. The fabric primarily fulfills decorative purposes. With its variety of colors and textures, it sets accents in interior design. However, absorber fabrics are only suitable as such if they are acoustically transparent, i.e. if they allow sound waves to pass through.

Product overview of acoustic fabrics