Stratocell Whisper lightweight sound absorbing acoustic panels at the ceiling of pool

Whisper®

Whisper®

Manufacturer:
Sealed Air®

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca niskie tony fal dźwiękowych

low tones

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Ultra-lightweight acoustic panel

Whisper® is designed for spaces where acoustic performance must meet particularly demanding requirements. In school gyms, sports halls and swimming pools, it effectively reduces reverberation, improves listening comfort and makes communication easier.

Ultra-lightweight, moisture-resistant, washable and durable, Whisper® is also resistant to ball impact, as confirmed by testing. It is an excellent solution for intensively used sports facilities.

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Panele akustyczne Whisper® na ścianie sali gimnastycznej szkoły

Ball. Water. Reverberation.

Whisper® is made for demanding spaces
Large volumes, hard surfaces and intensive use make sports halls, school gyms and swimming pools particularly challenging acoustic environments.

Whisper® combines high sound absorption performance with the durability required in such spaces. It is lightweight, fibre-free, washable and resistant to water, chlorine and cleaning agents. Its semi-rigid structure withstands the demanding conditions typical of sports facilities, including ball impact.

moisture resistant

Swimming pools, changing rooms
and high-humidity environments.

impact resistant

Suitable for intensively
used sports facilities.

fibre-free

Does not crumble
or release irritating fibres.

Panel dźwiękochłonny Stratocell Whisper w kolorze białym
Whisper lightweight sound absorbing panel black foam

1.25 kg/m²

Acoustic performance without the weight
At a thickness of 50 mm, Whisper® weighs only 1.25 kg per square metre. A standard 1200 × 2400 mm sheet therefore weighs approximately 3.6 kg.

Its exceptionally low weight helps minimise additional loads on ceiling structures. This is particularly important when upgrading older schools, school gyms, sports halls and other buildings where the existing structure has limited spare load-bearing capacity.

At the same time, 50 mm Whisper® achieves sound absorption Class A.

Minimum weight. Maximum absorption.

Panele akustyczne Whisper® na ścianie i suficie sali gimnastycznej szkoły

Proven
in a school gym

Malborska School, Kraków
In the gym at Malborska School in Kraków, we installed Whisper® panels on the ceiling and side walls.

The large room volume, hard surfaces and sounds generated during sports activities resulted in strong reflections and long reverberation. The introduction of sound-absorbing material helped control the acoustic field and improve communication conditions between teachers and students.

Panele akustyczne Whisper® na ścianie i suficie sali gimnastycznej szkoły
Panele akustyczne Whisper® na ścianie i suficie sali gimnastycznej szkoły
Panele akustyczne Whisper® na ścianie i suficie sali gimnastycznej szkoły

Ball impact resistant

Ready for sport. Tested and verified.
Whisper® has been tested for ball impact resistance and achieved the highest Class 1A for the tested configuration.

The test was carried out at a ball velocity of 16.5 m/s ± 0.8 m/s, corresponding to demanding applications in sports halls and school gyms.

Whisper - Ball impact resistant

The unique structure
of Whisper®

Whisper® is made from high-performance polyethylene foam with a networked, closed-cell, honeycomb-like structure. This unique structure allows the material to remain acoustically “soft”, absorbing sound energy rather than reflecting it.

Unlike many conventional fibrous materials, Whisper® contains no irritating fibres, does not crumble and does not provide a nutrient source for fungal growth. It has low VOC emissions and is suitable for use in humid environments.

The product has a VOC emission rating of A+ and has successfully passed fungal resistance testing in accordance with ASTM C1338.

Ultralekkie, dźwiękochłonne panele Whisper na suficie basenu

Architectural freedom

More than a rectangular panel
Whisper® can be cut, curved and shaped into a wide variety of forms.
CNC-machined elements, patterns, lettering and compositions combining different material colours can all be created.

Acoustics can become part of the architecture rather than an addition to it.

Stratocell Whisper lekki panel dźwiękochłonny wiszący w sali teatralnej

Easy Installation

Whisper® can be used as wall and ceiling cladding, suspended acoustic baffles or as elements installed within frame structures.

The material can be easily cut on site and processed using a knife, saw, CNC machining, routing or waterjet cutting.

Panele dźwiękochłonne Whisper z pianki na suficie podwieszanym poprawiające akustykę korytarza w biurowcu

Frequently asked questions

Yes. Its low weight, effective sound absorption and durable semi-rigid structure make it particularly suitable for large and intensively used sports facilities.

Yes. Whisper® has been tested for ball impact resistance. The tested configuration achieved Class 1A at a ball velocity of 16.5 m/s ± 0.8 m/s.

The result is confirmed by Certificate of Conformity No. 041/WCE/25, issued on the basis of testing covering the requirements of DIN 18032-3:2023-12 and EN 13964:2014.

Yes. The material maintains its acoustic properties in high-humidity environments, is washable and resistant to substances commonly found in swimming pool environments, including chlorine.

Yes. Its very low weight, just 1.25 kg/m² for the 50 mm version, significantly reduces the additional load placed on the existing structure.

The fixing method should always be selected to suit the existing substrate and structural conditions.

The 40, 50 and 100 mm versions achieve sound absorption Class A.

The appropriate thickness should be selected according to the required acoustic performance of the room.

Whisper® primarily absorbs sound within a room, reducing reverberation and echo.

This should not be confused with the sound insulation performance of the complete building partition.

Details

Whisper® is a semi-rigid, closed-cell, sound-absorbing polyethylene foam panel with a honeycomb-like structure, designed to reduce reverberation and noise in demanding environmental conditions.

The material is moisture-resistant, washable, fibre-free and lightweight, and maintains its properties even in high-humidity environments.

In testing, Whisper® achieved Class 1A ball impact resistance, confirming its suitability for applications including school gyms and sports halls.

Dimensions

Standard sheet size: 1200 × 2400 mm

Material

Closed-cell polyethylene foam

Thicknesses

25 / 40 / 50 / 60 / 100 mm

Colours

  • natural white
  • anthracite black
  • light grey (available for selected thicknesses)

Density

25 kg/m³

Service temperature

-60 to +80°C

VOC emissions

Class A+

Ball impact resistance

Class 1A

EN 13964:2014, Annex D
Tested in accordance with DIN 18032-3:2023-12

Tested configuration: Whisper® FR 600 × 600 × 55 mm

Certificate of Conformity No. 041/WCE/25

Fungal resistance

ASTM C1338: passed

Water absorption by diffusion

At RH >95%, after 28 days: <5% by volume

EPD

Environmental Product Declaration: S-P-05174

Fire performance

Reaction to fire classification: B-s1, d0 for 20–30 mm; B-s2, d0 for 40–100 mm

Installation

Wall or ceiling installation

  • school gyms, sports halls, swimming pools, schools, sports and entertainment halls, fitness centres
  • recording studios and performance venues
  • training centres, auditoriums and offices
  • food processing facilities, warehouses and industrial buildings
  • laundries, kitchens, restaurants and retail spaces
  • acoustic barriers along roads, in tunnels and alongside railway infrastructure
  • construction site acoustic barriers
  • enclosures for generators, pumps, server rooms and air-conditioning units

Whisper® can be adapted to a wide variety of interiors and structures.

Depending on the application and environmental conditions, panels can be adhesively bonded or mechanically fixed to walls, mounted to ceilings, suspended as acoustic baffles, installed using concealed Flushmount fixings, or fitted within frames and profiles.

For ceiling installations, the manufacturer recommends the use of an additional mechanical safety fixing.

The appropriate installation method should be selected according to the substrate, environmental conditions and intended application of Whisper®.

Sound absorption coefficients

Wykres współczynników pochłaniania dźwięku dla paneli dźwiękochłonnych Whisper
Thickness αw Absorption class NRC SAA
25 mm 0.50 D 0.75 0.78
40 mm 0.90 A 0.90 0.91
50 mm 1.00 A 1.00 0.98
60 mm 0.85 B 0.85 0.85
100 mm 0.90 A 0.85 0.84

    * Sound absorption measurements were carried out in accordance with EN ISO 354. The αw value and sound absorption classes were determined in accordance with EN ISO 11654.

Whisper Product Specification Sheet

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Acoustic wall slats

SlotBar Alu

SlotBar Alu

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca niskie tony fal dźwiękowych

low tones

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Acoustic wall slats

SlotBar is a modular sound-absorbing system. Its properties result from specifically designed slot system which maintains optimum acoustic conditions and provides innovative shape. The whole structure made from aluminium guarantees sound absorption in the low frequency range. SlotBar can be used as a standalone system or in addition to our OptiDi diffuser.

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Adaptacja akustyczna Slotbar na ściany w domowym kinie
Dźwiękochłonne listwy akustyczne pułapka basowa na ścianie w pokoju odsłuchowym

SlotBar can be used
as a standalone system
or in addition to our
OptiDi diffuser.

Designer
AS Team

more
Architected Sound Team

Details

SlotBar Alu

SlotBar Alu + Optidi

SlotBar Alu is possible to finish in any colour from RAL K7 Classic palette or wood–like varnish.

RAL K7 Classic

The most popular colours

Wood-like varnish

Non-binding color sample.
Production-related and/or application-related deviations are possible.

Before placing an order, please contact us at info@architected-sound.com in order to verify the colours and their availability.


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Baffle

Baffle

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca średnie tony fal dźwiękowych

mid-tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Sound absorbing ceiling panel

Detailed information, which we are working on,
will soon be available here. For more information about the Baffle,
please contact us via the contact form or email.

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Sound absorbing ceiling panels in office to reduce noise

EcoPET Quality, Safety and Certifications

Quality and safety are our highest priorities. That is why we use materials that meet high standards of quality, safety and environmental responsibility. EcoPET holds independent certifications and declarations confirming, among other things, its safety in use, recycled content and environmental performance. The material has also been tested for substance emissions and compliance with REACH and RoHS requirements.

RoHS compliant
Reach compliant

EU 1907/2006

Certyfikat wolny od formaldehydu

EN 717-1:2004

formaldehyde free

Certyfikat klasy niepalności

B-s2, d0

fire resistance

OEKO-TEX® STANDARD 100 Product Class I

Product Class I

Global GreenTag Certified GreenRate Level A

GreenRate Level A

architected sound EPD Environmental Product Declaration dla EcoPET

ISO 14025 / EN 15804

Global Recycled Standard 4.0

manufacturer coveredby GRS certification

Properties

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EcoPET on Wheels

EcoPET on Wheels

Ikona symbolizująca zjawisko odbicia fali dźwiękowej

reflection

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca średnie tony fal dźwiękowych

mid-tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Mobile acoustic panel

EcoPET on Wheels is a mobile acoustic system that absorbs sound in the full frequency range with the optional acoustic insulation function. Perfect for use in multifunctional spaces or with free furniture arrangements. It will be a perfect fit in pop-up spaces and in interiors where it is not possible to permanently interfere with the existing decor (i.e. historic spaces).

EcoPET on Wheels system may be produced with graphic elements on front and back or with a translucent element to separate space in open space offices or recording studios, while keeping the sunlight or maintaining eye contact. This system is a highly universal and ergonomic solution ensuring acoustic comfort, thanks to the possibility of personalization and freedom of setting and use.

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Colourful mobile acoustic panels in office space
EcoPET on Wheels - mobilny ekran akustyczny

Mobile acoustic partition with creative
whiteboard function

EcoPET on Wheels can be equipped with a dry-erase magnetic board, adding extra functionality to the product. The combination of high acoustic performance with a practical surface for notes and presentations makes it an ideal solution for modern offices, meeting rooms, creative zones, and coworking spaces.

Mobile partition with a dry-erase board

  • improves acoustic comfort by reducing reverberation and noise,
  • enables quick creation of a private workspace within an open office environment,
  • allows for easy note-taking, planning, and sketching,
  • supports presentations and discussions in a focused atmosphere,
  • can be easily moved to any location thanks to its wheels,
  • serves as a functional tool for teamwork and creative planning.

EcoPET Quality, Safety and Certifications

Quality and safety are our highest priorities. That is why we use materials that meet high standards of quality, safety and environmental responsibility. EcoPET holds independent certifications and declarations confirming, among other things, its safety in use, recycled content and environmental performance. The material has also been tested for substance emissions and compliance with REACH and RoHS requirements.

RoHS compliant
Reach compliant

EU 1907/2006

Certyfikat wolny od formaldehydu

EN 717-1:2004

formaldehyde free

Certyfikat klasy niepalności

B-s2, d0

fire resistance

OEKO-TEX® STANDARD 100 Product Class I

Product Class I

Global GreenTag Certified GreenRate Level A

GreenRate Level A

architected sound EPD Environmental Product Declaration dla EcoPET

ISO 14025 / EN 15804

Global Recycled Standard 4.0

manufacturer coveredby GRS certification

Properties

Details

EcoPET on Wheels is a mobile acoustic partition made of EcoPET – a high-performance, sound-absorbing composite derived from recycled PET, characterized by excellent sound absorption properties across a wide frequency range.

The product is designed for flexible arrangement of office spaces, open-plan areas, meeting zones, and coworking environments, where reducing reverberation and creating separated work zones is essential.

Its structure, mounted on a stable wheeled base, allows for easy relocation of the partition to suit the users’ current needs.

Functional and technical features:
– high sound absorption efficiency provided by EcoPET panels,
– choice of finish from a palette of over 100 available EcoPET colors,
– optional integration of a magnetic dry-erase board for notes and presentations,
– lightweight, mobile construction enabling effortless repositioning,
– capability to quickly create private work zones and reduce noise propagation.

EcoPET on Wheels combines acoustics, aesthetics, and functionality, making it an ideal solution for modern, dynamically changing spaces.

Standard sizes

1100 × 300 × 1900 mm

Weight

approx. 20 kg

Standard material

panel:
PET – pressed polyester fibers made from 75% recycled material

base:
plywood, wheels

Designer

Architected Sound Team

Please note, that the colors shown are for illustrative purposes only.
Batch to batch variations in shade may occur within commercial tolerances.

Before placing an order, please contact us at info@architected-sound.com in order to verify the colours and their availability.

Possibility of manufacturing in a custom size and any color (selected from the EcoPET color palette) according to individual specifications.

Technical drawing

Rysunek techniczny EcoPET on Wheels

For more information about EcoPET on Wheels, please contact us via the contact form or email.

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Acoustic drum screen

Drum Shield

Drum Shield

Ikona symbolizująca zjawisko izolacji fali dźwiękowej

insulation

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Acoustic drum screen

Drum Shield is the first professional drum screen that combines the insulating and sound-absorbing properties. This product was created as a solution to the problem of excessive sound reflection from standard screens made of plexiglass, and now it allows to maintain appropriate harmony between the instruments.

The use of sound absorbing EcoPET material on the drummer’s side in combination with a soundproofing layer hidden inside the panel reduces the noise of the drums heard by other musicians, which increases their playing comfort.

In addition, the Drum Shield effectively blocks sounds from other instruments, preventing crosstalk from percussion microphones.

more details
Acoustic drum screen in rehearsal room

EcoPET Quality, Safety and Certifications

Quality and safety are our highest priorities. That is why we use materials that meet high standards of quality, safety and environmental responsibility. EcoPET holds independent certifications and declarations confirming, among other things, its safety in use, recycled content and environmental performance. The material has also been tested for substance emissions and compliance with REACH and RoHS requirements.

RoHS compliant
Reach compliant

EU 1907/2006

Certyfikat wolny od formaldehydu

EN 717-1:2004

formaldehyde free

Certyfikat klasy niepalności

B-s2, d0

fire resistance

OEKO-TEX® STANDARD 100 Product Class I

Product Class I

Global GreenTag Certified GreenRate Level A

GreenRate Level A

architected sound EPD Environmental Product Declaration dla EcoPET

ISO 14025 / EN 15804

Global Recycled Standard 4.0

manufacturer coveredby GRS certification

Properties

Detailed information, which we are working on, will soon be available here.

For more information about the Drum Shield, please contact us via the contact form or email.

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StandAlone

StandAlone

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca niskie tony fal dźwiękowych

low tones

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Acoustic screen

Standalone panel is a free-standing acoustic system that absorbs sound in the full frequency range. Perfect for use in spaces with various functions or a free arrangement of furniture. It will be a great fit as part of pop-up spaces or in interiors where it is not possible to interfere with the existing decor (i.e. historic spaces, etc.).

The Standalone panels may be produced with graphic elements on front and back or with a translucent element to separate space in open space offices or recording studios, while keeping the sunlight or maintaining eye contact.

more details

Set, adjust,
and enjoy the silence!

Effective noise reduction – absorbs sound across the full frequency range.
Mobility and flexibility – ideal for offices, open spaces, recording studios, and multifunctional areas.
No interior modifications – a freestanding structure, perfect for historic and rented spaces.
Customization options – a wide range of colors, branding, and transparent elements.
Safety and durability – made from lightweight, impact-resistant EcoPET.
Easy installation – no need for wall or ceiling mounting.

EcoPET Quality, Safety and Certifications

Quality and safety are our highest priorities. That is why we use materials that meet high standards of quality, safety and environmental responsibility. EcoPET holds independent certifications and declarations confirming, among other things, its safety in use, recycled content and environmental performance. The material has also been tested for substance emissions and compliance with REACH and RoHS requirements.

RoHS compliant
Reach compliant

EU 1907/2006

Certyfikat wolny od formaldehydu

EN 717-1:2004

formaldehyde free

Certyfikat klasy niepalności

B-s2, d0

fire resistance

OEKO-TEX® STANDARD 100 Product Class I

Product Class I

Global GreenTag Certified GreenRate Level A

GreenRate Level A

architected sound EPD Environmental Product Declaration dla EcoPET

ISO 14025 / EN 15804

Global Recycled Standard 4.0

manufacturer coveredby GRS certification

Properties

Details

Technical drawing

Technical drawing Standalone

Fire safety

Possibility of making the system out of materials with flammability class B-s2, d0.

For more information about the StandAlone, please contact us via the contact form or email.

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System rozpraszający dźwięk OptiDi wielokolorowy na ścianie w sali prób

OptiDi

OptiDi

Ikona symbolizująca zjawisko rozproszenia fali dźwiękowej

diffusion

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca niskie tony fal dźwiękowych

low tones

Sound diffuser system

OptiDi is an acoustic diffuser designed for specific performance goals. It gives interiors a distinctive character, combining minimalist aesthetics with excellent acoustic properties.

The system is made of specially profiled aluminium to provide sound diffusion  in the mid and high frequency ranges, while also absorbing low frequencies. When designing the shape of OptiDi, our key objective was to achieve high sound diffusion efficiency with the smallest possible panel depth.

Every millimetre mattered to us.

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Sound diffuser system on the wall near the scene in the philharmonic
Sound diffuser system on the wall in the performance hall
Sound diffuser system on the wall in the cinema hall
Aula wykładowa z zastosowaniem dyfuzora akustycznego OptiDi
Optidi sound diffuser system with slotbar on the wall in rehearsal room
Sala prób z zastosowaniem dyfuzora akustycznego OptiDi
Sala prób z zastosowaniem dyfuzora akustycznego OptiDi

Designer
AS Team

more
Architected Sound Team

Details

OptiDi system diffuses sound in mid and high frequencies, most effectively as a combination of positive and negative modules. Due to internal filling and variable slots’ width, bass absorption may be adjusted to a particular frequency of choice. OptiDi is usually used on walls but it can be designed for ceilings or as a portable panel as well.

Size

150 × 1200 × 40 mm

Max lenght

  • 7500 mm - colours from RAL K7 Classic palette
  • 7000 mm - varnish

Weight

17 kg/m2

Material

aluminium

Designer

Architected Sound Team

Sound absorption coefficient

αw, max = 0.20


Additional information

Technical solution developed in cooperation with the AGH University of Science and Technology in Cracow.
Community design number: 004417723-0001 and 004417723-0002.

Logo of AGH University of Science and Technology.

Registered Community Design

OptiDi is a product registered with EUIPO – the European Union Intellectual Property Office.
Community design numbers: 004417723‑0001 and 004417723‑0002

A Community design is a legally protected form of industrial design, registered with the European Union Intellectual Property Office (EUIPO), granting exclusive rights to its use across the entire European Union. This protection prevents unauthorized copying and exploitation by third parties, ensuring its originality and safeguarding the interests of its owner.

OptiDi system is possible to finish in any colour from RAL K7 Classic palette or wood–like varnish.

RAL K7 Classic

The most popular colours

Varnish

Non-binding color sample.
Production-related and/or application-related deviations are possible.

Before placing an order, please contact us at info@architected-sound.com in order to verify the colours and their availability.

  • concert halls
  • philharmonic halls
  • theater halls
  • opera houses
  • rehearsal rooms
  • recording studios
  • control rooms
  • radio and TV emission rooms
  • lecture halls
  • conference rooms
  • dedicated listening rooms

A comprehensive acoustic system, individually designed to meet the required acoustic performance parameters.

Available in ceiling-mounted and mobile versions.

Different panel thicknesses are available, depending on the required level of low-frequency sound absorption.

Technical drawing

Technical drawing of OptiDi acoustic diffuser - cross section view and front view

Fire safety

Made of materials with flammability class A1.

Sound absorption coefficients of Architected Sound OptiDi

Architected Sound OptiDi acoustic diffuser - Graph of sound absorption coefficients

Practical sound absorption coefficient αp

direct
mouting
A-40 C-50 C-60 C-100
frequency
1/1‑oct.
125 Hz 0.05 0.60 0.70 0.45
250 Hz 0.10 0.20 0.45 0.20
500 Hz 0.25 0.05 0.15 0.05
1000 Hz 0.20 0.10 0.10 0.10
2000 Hz 0.15 0.15 0.15 0.15
4000 Hz 0.20 0.20 0.20 0.20
  • A-40: direct mounting, o.d.s. 40 mm*
  • C-50: slit 1 mm + mineral wool 50 mm (35 kg/cbm), o.d.s. 90 mm*
  • C-60: slit 3 mm + mineral wool 60 mm (35 kg/cbm), o.d.s. 100 mm*
  • C-100: slit 1 mm + mineral wool 100 mm (35 kg/cbm), o.d.s. 140 mm*
  • * results obtained from analytical calculations

Sound scattering coefficients of Architected Sound OptiDi

Architected Sound OptiDi acoustic diffuser - Graph of sound scattering coefficients

Sound scattering coefficient s

frequency 1/3-oct.
1000 Hz 0.05
1250 Hz 0.13
1600 Hz 0.28
2000 Hz 0.44
2500 Hz 0.53
3150 Hz 0.62
4000 Hz 0.82
5000 Hz 0.90
  • slit from 0 to 5 mm*
  • * measurement conducted in accordance to ISO 17497-1:2004

Thumbnail cover of brochure of OptiDi acoustic diffuser
Product Sheet cover of Architected Sound Optidi
Thumbnail cover of user guide of OptiDi acoustic diffuser
Thumbnail cover of our products catalogue
Plik DAT
AS_CATT_library
Plik PWM
AS_MaterialBase_01.18_pack

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Panel rozpraszający dżwięk - OptiDi Panel

OptiDi Panel

OptiDi Panel

Icon symbolizing the phenomenon of sound wave diffusion.

diffusion

Icon symbolizing the phenomenon of the sound wave absorption.

absorption

Icon symbolizing the low tones of sound waves.

low tones

Sound diffuser panel

OptiDi Panel is a compact acoustic diffuser with a wide range of applications. Its unique shape and colour bring life to any interior, giving it a distinctive character by combining visual appeal with acoustic performance. Precisely formed from aluminium, it is available in two profiles and two thickness options, providing sound diffusion in the mid and high frequency ranges, with optional low-frequency absorption.

When designing the shape of OptiDi, our key objective was to achieve high sound diffusion efficiency with the smallest possible panel thickness.

Every millimetre mattered to us.

more details
OptiDi Panel - kompaktowy dyfuzor akustyczny
OptiDi Panel - kompaktowy dyfuzor akustyczny

A Master of the Background

OptiDi Panel does more than diffuse sound – it can also take centre stage in an interior arrangement.
At Kraków’s Variete Theatre, it proved that acoustic performance and scenic presence can go hand in hand.

see the project

Golden Hall
of the Kraków Philharmonic

OptiDi Panel was used as an acoustic treatment supporting sound control in this intimate concert space, without interfering with the representative character of the interior.

see the project
OptiDi Panel w Złotej Sali Filharmonii Krakowskiej.

Extended Low-Frequency Control

OptiDi Panel can be complemented with a rear absorbing module, extending its performance to include low-frequency control.

OptiDi Panel - kompaktowy dyfuzor akustyczny
OptiDi Panel - kompaktowy dyfuzor akustyczny
OptiDi Panel - kompaktowy dyfuzor akustyczny
OptiDi Panel - kompaktowy dyfuzor akustyczny

Designer
AS Team

more
Architected Sound Team

Details

OptiDi Panel is an acoustic diffuser made of specially profiled aluminium, providing sound diffusion in the mid and high frequency ranges as well as low-frequency absorption. It is available either as a sound-diffusing version or with an optional absorbing panel.

Standard sizes

  • OptiDi Panel:
    612 x 1010 x 48 mm
  • OptiDi Panel with optional sound-absorbing panel:
    612 x 1010 x 100 mm
  • OptiDi Panel In Frame:
    650 x 1040 x 100 mm

* dimensions without mounting elements

Weight

  • OptiDi Panel: 13 kg
  • OptiDi Panel with optional sound-absorbing panel: 17 kg
  • OptiDi Panel in Frame: 25 kg

Material

aluminium, wood-based material, mineral wool
Possible finish in any colour from the RAL palette or wood-like varnish.

Designer

Architected Sound Team

Sound absorption coefficient

αw, max = 0.20


Additional information

Technical solution developed in cooperation with the AGH University of Science and Technology in Cracow.
Community design number: 004417723-0001 and 004417723-0002.

Logo of the AGH University of Science and Technology in Cracow.

Registered Community Design

OptiDi is a product registered with EUIPO – the European Union Intellectual Property Office.
Community design numbers: 004417723‑0001 and 004417723‑0002

A Community design is a legally protected form of industrial design, registered with the European Union Intellectual Property Office (EUIPO), granting exclusive rights to its use across the entire European Union. This protection prevents unauthorized copying and exploitation by third parties, ensuring its originality and safeguarding the interests of its owner.

Possible finish in any colour from the RAL K7 palette or wood-like varnish.

RAL K7 Classic

The most popular colours

Varnish

Non-binding color sample.
Production-related and/or application-related deviations are possible.

Before placing an order, please contact us at info@architected-sound.com in order to verify the colours and their availability.

  • concert halls
  • philharmonic halls
  • theater halls
  • opera houses
  • rehearsal rooms
  • recording studios
  • control rooms
  • radio and TV emission rooms
  • lecture halls
  • classrooms
  • conference rooms
  • offices
  • dedicated listening rooms

An individually designed comprehensive acoustic system, taking into account the particular frequency bands.

Possible mobile version.

Different panel thicknesses are available in the hybrid variant due to the absorption needed.

Technical drawing

Rysunek techniczny OptiDi Panel Rysunek techniczny OptiDi Panel
Rysunek techniczny OptiDi Panel Rysunek techniczny OptiDi Panel
Rysunek techniczny OptiDi Panel Rysunek techniczny OptiDi Panel

Fire safety

Possibility of making the system out of materials with flammability class A1.

Sound absorption coefficients of Architected Sound OptiDi Panel

Sound absorption coefficients graph of Architected Sound OptiDi Panel

Practical sound absorption coefficient αp

direct
mouting
A-40 C-50 C-100
frequency
1/1‑oct.
125 Hz 0.05 0.60 0.45
250 Hz 0.10 0.20 0.20
500 Hz 0.25 0.05 0.05
1000 Hz 0.20 0.10 0.10
2000 Hz 0.15 0.15 0.15
4000 Hz 0.20 0.20 0.20
  • A-40: direct mounting, o.d.s. 40 mm*
  • C-50: slit 1 mm + mineral wool 50 mm (35 kg/cbm), o.d.s. 90 mm*
  • C-100: slit 1 mm + mineral wool 100 mm (35 kg/cbm), o.d.s. 140 mm*
  • * results obtained from analytical calculations

Sound scattering coefficients of Architected Sound OptiDi Panel

Sound scattering coefficients graph of Architected Sound OptiDi Panel

Sound scattering coefficient s

frequency 1/3‑oct.
1000 Hz 0.05
1250 Hz 0.13
1600 Hz 0.28
2000 Hz 0.44
2500 Hz 0.53
3150 Hz 0.62
4000 Hz 0.82
5000 Hz 0.90
  • slit from 0 to 5 mm *
  • * measurement conducted in accordance to ISO 17497-1:2004

Thumbnail cover of brochure of Optidi Panel sound diffuser.
Thumbnail cover of our products catalogue
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Wizualizacja sali koncertowej w filharmonii, w której zastosowano panel akustyczny odbijający Reffuzor

Reffuzor

Reffuzor

Ikona symbolizująca zjawisko odbicia fali dźwiękowej

reflection

Ikona symbolizująca niskie tony fal dźwiękowych

low tones

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Sound reflective panel

Reffuzor ceiling panel with the basic function of directing sound has been designed in order to reflect the sound waves in the extended frequency range. The possibility of permanent suspension or setting the angle of inclination allows to adjust the acoustic parameters of the room, depending on the type of artistic event.

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Wizualizacja sali koncertowej w filharmonii, w której zastosowano panel akustyczny odbijający Reffuzor
Wizualizacja sali koncertowej w filharmonii, w której zastosowano panele akustyczne odbijające Reffuzor
Wizualizacja sali teatralnej, w której zastosowano panele akustyczne odbijające Reffuzor
Wizualizacja sali teatralnej, w której zastosowano panele akustyczne odbijające Reffuzor
Wizualizacja sali wykładowej, w której zastosowano panel akustyczny odbijające Reffuzor

Designer
AS Team

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Architected Sound Team

Details

The novelty of Reffuzor panels technology is the result of in-depth material analyzes, computer simulations and tests carried out in specialized measuring chambers. The ability to adjust the angle of the panels, allows to direct reflections to specific places in the room. An additional sound absorbing layer located at the top of the panel prevents the occurrence of undesirable reflections between the panel and the ceiling surface.

The use of Reffuzor panels in groups increases their effectiveness and allows to improve the quality of mutual hearing of artists on stage and to evenly cover audience surface with sound.

Size

According to individual design of an interior and required acoustic properties.

Weight

Approximately 30 kg / sqm

Material

wood-based or gypsum-fiber materials, polyethylene foam

Designer

Architected Sound Team


Aditional information

Technical solution patented by AGH University of Science and Technology in Cracow.
Patent number: PL 227198 B1.

Logo of AGH University of Science and Technology.

Available in any colour from the RAL K7 classic palette.

RAL K7 Classic

  • concert halls
  • theaters
  • operas
  • multi-purpose halls

Possibility of designing panels with dimensions, shapes and colours adapted to a specific room. They can also be equipped with an automatic angle adjustment system in two planes. The regulation system can be integrated with the management systems of leading manufacturers

Technical drawing

Architected Sound Reffuzor - Sound reflection panel - Front view Architected Sound Reffuzor - Sound reflection panel - Cross section view

Fire safety

Possibility of making the system out of materials with flammability class at least D-s1.

Directional reflection characteristics of the Reffuzor panel compared to a standard flat reflective panel for a sound frequency of 4000 Hz.

Architected Sound Reffuzor - Sound reflection panel - Directional reflection characteristics graph

Amplitude-frequency characteristic of sound reflection from the Reffuzor panel and compared to standard flat reflection panel for an angle of incidence of 75°.

Architected Sound Reffuzor - Sound reflection panel - Reflection level graph
Architected Sound Up-Sorber Roll - Sound reflection panel - Thumbnail of brochure cover
Architected Sound Up-Sorber Roll - Sound reflection panel - Thumbnail of product sheet cover
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Architected Sound Up-Sorber Roll - Rozwijany baner akustyczny dźwiękochłonny w sali koncertowej

Up-Sorber Roll

Up-Sorber Roll

Ikona symbolizująca zjawisko pochłaniania fali dźwiękowej

absorption

Ikona symbolizująca średnie tony fal dźwiękowych

mid tones

Ikona symbolizująca wysokie tony fal dźwiękowych

high tones

Sound-absorbing roller blinds

Up-Sorber Roll is expandable sound‑absorbing banner that we designed to ensure quick and automatic regulation of acoustic properties in multi-functional rooms. This product consists of rolled-up fabric of custom designed length to fit particular environment. Up‑Sorber Roll has a control system that provide autonomous and automatic operation.

Due to individually designed control system, setting proper acoustics has never been easier !

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Wizualizacja sali koncertowej, w której zastosowano automatyczny system rozwijanych banerów akustycznych Up-sorber Roll w celu polepszenia akustyki pomieszczenia
Baner akustyczny Up-Sorber Roll zieleń wizualizacja

Designer
AS Team

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Architected Sound Team

Details

Up-Sorber Roll contains an expandable surface made of textile materials, ensuring the regulation of reverberation time in the range of medium and high tones by increasing the acoustic absorption of the interior and eliminating the first reflections of the sound.

Up-Sorber Roll can be made of one or two layers of textile. The latter increases acoustic absorption in low frequencies and allows obtaining maximum uniformity of acoustic conditions in the whole room.

The system is designed to be installed on walls or ceilings. Specialized mounting procedure required due to individual character of each project.

Size

  • standard width - 1.3 m
  • max width - 2.5 m
  • max lenght - 5.0 m

Weight

ca. 26 kg

Material

absorptive fabrics
Available in various sizes and colours according to individual project.

Designer

Architected Sound Team

Sound absorption coefficient

αw, max = 0.65

Please note, that the colors shown are for illustrative purposes only.

Before placing an order, please contact us at info@architected-sound.com in order to verify the colours and their availability.

  • multi-functionals rooms
  • concert halls
  • theaters
  • philharmonics
  • lecture rooms
  • conference rooms
  • home listening rooms
  • rooms in buildings under the supervision of the conservator

Non-standard length and width possible. Possibility of creating a passive surface that can be made of materials ensuring free air flow, such as steel cables or mesh. The active surface is made of textile materials, also with non‑flammability certificates.
Possibility of backlighting of the lower stiffening beam with battery power supply.

Technical drawing

Wall mounting

Wall mounting of Architected Sound Up-Sorber Roll sound absorbing roller blinds

Ceiling mounting

Wall mounting of Architected Sound Up-Sorber Roll sound absorbing roller blinds
architected-sound-expandable-sound-absorbing-banner-up-sorber-roll-technical-drawing

Fire safety

Made of materials with flammability class B-s2, d0.

Sound absorption coefficients of Architected Sound Up-Sorber Roll

architected-sound-up-sorber-roll-sound-absorption-coefficients-graph

Practical sound absorption coefficient αp

frequency 1/1-okt.
125 Hz 0.15
250 Hz 0.40
500 Hz 0.75
1000 Hz 0.85
2000 Hz 0.65
4000 Hz 0.65
  • distance of the expanded surface from the wall: 100 mm
Architected Sound Up-Sorber Roll - Expandable sound-absorbing banner - Thumbnail of brochure cover
Thumbnail of the cover of theUp Sorber Roll catalog card
Architected Sound Up-Sorber Roll - Expandable sound-absorbing banner - Thumbnail of user guide cover
Thumbnail cover of our products catalogue
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