silencing through design fileAt an early stage humans developed five senses; taste, touch, sound,...

silencing through design

THE ESSENCE OF A SOUND ABSORBER IS TO SUBDUE

AND BREAK UP SOUND WAVES TO CREATE PLEASANT

SURROUNDINGS AND ENVIRONMENTS. IT’S THE

FUNCTION AND TECHNOLOGY BEHIND THIS THAT

HAVE BEEN THE DRIVING FORCE BEHIND THE DESIGN

PROCESS, WHERE AESTHETIC VALUES CAN BE SEEN IN

MATHEMATICAL FORMULAS THAT CREATE A BASE ON

WHICH TO BUILD FURTHER.

JOHAN LINDSTÉN

At an early stage humans developed five senses; taste, touch, sound,

smell, and sight. Out of these the latter three are of extra importance for

our survival. We have chosen to focus on sound.

When our ability to hear first evolved it was primarily used to identify

danger, locate its origin and figure out the best route of escape. Nowa-

days we are faced with a completely different challenge. We live in an

information society where the ability to distinguish voices and sounds is

essential to be able to sort and make use of information. In order to not

be distracted by unwanted sounds we have developed noise absorbing

mechanisms, making it more pleasant and easier to concentrate when

spending time in these challenging environments. We want to bring the

conditions of our outside environment into our indoor spaces.

Our goal is to recreate our outdoor environment by pleasing all our sen-

ses; eyes, ears and soul!

Inspired by a simple envelope, with its clean lines, creates

symmetry in a playful way. By mounting Post in various angles

it generates tension, beautiful shadows and patterns.

HEIGHT 60 CMWIDTH 60 CMDEPTH 6 CM

POST C O R Y G R O S S E R

For us, good design is like a great meal with friends: the ingredi-

ents have to be right, the dish sould be individually prepared, the

spices fine tuned. Someone enthusiastically tells an interesting

story. We laugh a lot, the wine is good, we keep the memory of a

wonderful evening for a long time. At the beginning of the design

development is a brainstorming: simple • easy • like a picture • un-

complicated • variable • concise • formally reduced • self-explana-

tory • independently detailed • innovative.

At the end there is Clamp

HEIGHT 60 CMWIDTH 60 CMDEPTH 4 CMTOTAL D. 6 CM


WALL FLOOR

CLAMP A N D R E A W E I T Z & J E N S W E N D L A N D

Hertz is a series of sound absorbers with excellent sound absorp-

tion properties that is available in a total of 15 different formats. Its

stylish, understated design means it is simple to apply to different

types of environments.

HEIGHT 80 CM 80 CM 60 CM 60 CM 40 CMWIDTH 80 CM 40 CM 60 CM 30 CM 40 CMDEPTH 4/6/8 CM 4/6/8 CM 4/6/8 CM 4/6/8 CM 4/6/8 CM

HERTZ S T U D I O J O H A N S O N

CHESTERFIELD J O H A N L I N D S T É N

CHESTERFIELD HAS HIGH ABSORBENCY PROPERTIES THANKS TO ITS INNOVATIVE CONSTRUCTION. IT MIXES A

VARIETY OF ABSORBENCY DENSITIES: HIGH DENSITY CLOSEST TO THE WALLS AND LOWER DENSITY FURTHER

AWAY FROM THE WALLS. IT CREATES A GOOD BALANCE IN THE IMPORTANT MEDIUM FREQUENCY RANGE IN

WHICH MUCH OF THE SOUND ENERGY IN SPEECH CAN BE FOUND. THIS MAKES CHESTERFIELD A HIGHLY EFFEC-

TIVE, SPACE-EFFICIENT SOLUTION: ITS ABSORBENCY PROPERTIES ARE UP TO 30% GREATER THAN THOSE OF A

STANDARD SOFT PANEL THAT WOULD HAVE OCCUPIED THE SAME SPACE.”

PIERRE CHIGOT / DESIGN DEVELOPER, ECOPHON

Like its name, the inspiration comes from the iconic, traditional

Chesterfield sofa and its timeless design that has become synony-

mous with deep quilting. The height differences of the sinusoidal

curves give the sound absorbers their characteristic design at the

same time as reinforcing their acoustic and absorbent properties.

HEIGHT 60,5 CMWIDTH 60,5 CMDEPTH 6 CM

LOOP J O H A N L I N D S T É N

Loop is made up of four identical arcs/radii which together create

a geometric basis for expansion. You can adapt the look of the

exterior depending on how Loop is positioned and with an offset

you can create a playful, billowing design along the wall.


The aim and intention of Romb is to create an intricate, graphic

silhouette with a blend of rhombuses, triangles and hexagons

which, when combined as a whole, create a visually attractive

pattern. Various parallel characters can be seen in the structure,

depending on how it is viewed.


ROMB J O H A N L I N D S T É N

ILLUSION C O R Y G R O S S E R

Illusion, with its beautifully balanced design, is an efficient sound

absorber thanks to the way it is constructed. The pleats create a

larger exposed surface, while the cavity behind provides the

absorber with the airspace it needs to work efficiently in the medi-

um frequency range.


ILLUSION C O R Y G R O S S E R

Illusion, with its beautifully balanced design, is an efficient sound

absorber thanks to the way it is constructed. The pleats create a

larger exposed surface, while the cavity behind provides the

absorber with the airspace it needs to work efficiently in the medi-

um frequency range.


MAG B Ö T T C H E R & K A Y S E R

Versatile, flexible and playfully useful. The new acoustic panel system Mag designed

by the German design duo Böttcher-Kayser has a modern design idea with great

flexibility and can be used with great variety. In addition to its sound absorption,

Mag can be used as a space separator if you want to create a more private area.

Thanks to the magnetic edges of the panels, you can quickly and easily vary the

composition of the panels, disassemble them or connect them without the need

for tools. Through the wide range of fabrics, it is easy to create new environments,

rooms within the room and change the expression.

HEIGHT 180 CMWIDTH 80 CMDEPTH 4,5 CM

FOREST B Ö T T C H E R & K A Y S E R

Forest, with its abstract silhouette of trees, creates the same calm feeling indoors

as the calm of the forest. Just like in the natural forest, which sometimes is dense

and sometimes sparse, you can build similar structures with Forest. The good sound

absorption capability and the organic forms create a calm atmosphere in office and

work environments.



HIGH LOW

Sound consists of energy. The difference between sound and, for instance, light is that

sound needs particles to move through. Sound needs a medium, usually air, to be able to

transport itself from point A to point B. Sound also needs something to initiate vibrations,

such as a hammer hitting a nail or a guitar string being played. Furthermore, the ear and

its ability to distinguish sounds is an essential component in the acoustic environment.

The energies that constitute sounds vary depending on the frequency of the sound

waves. A bass will propagate sound waves with more energy and low frequency, which is

why we can experience a pressure in our whole bodies at a concert when there is a loud

bass. This is nothing more than air being pushed towards us. Bass tones will therefore

carry over long distances due to its high level of energy and be experienced as disturbing.

Treble sounds on the other hand have less energy and shorter wavelength and thereby

fade quicker over distance. Imagine a conversation in the office next door. We have a

difficult time hearing what is being said because the treble sound cannot get through the

wall like the bass sound would. If the voice is very low the sound will feel more annoying

as we cannot distinguish the specifics but clearly hear the bass tones.

We all have an internal hearing threshold that is affected by differently. If we are expo-

sed to strong sound pressure (above 120dB) we experience pain as our pain barrier is

breached. We should be aware of the fact that our ears are not as forgiving as our eyes.

When exposed to extremely strong light our eyes close automatically, we may get a blind

spot on our eyes that eventually heals. Our ears on the other hand can be damaged more

seriously. We can develop tinnitus and other types of hearing problems that do not heal

by themselves. We rather endure poor lighting than a poor sound environment.

Our hearing also changes with age. It is quite common that elders get a more narrow

curve. They then have difficulty distingushing between similar words and different

consonants. They instead interpret the situation and read lips. However if we bump up the

sound level they tend to hear what we are saying.

KNOWLEDGE AND UNDERSTANDING OF SOUND

100 dB

125

o å

ng mn l r v

bdg ptkf sj tj

s

a ö u ä e i y

Hertz250 500 1 000 2 000 4 000 8 000

50 dB

0 dB

Humans can hear between the frequencies of 20-20 000 Hz. However, our speech lies between 125-8 000 Hz. O, A, E and Y are the vowels that are loudest. These are possible to place in the lower of the spectrum. B, M, R and V are toned consonants, which means they occupy the middle part of the frequency range. The upper part is taken by J, P, F, S and T.

CLASSROOM A huge problem are classrooms, where there in normal cases are only one source of sound

in a specific part of the room (the teacher speaking). Closest are the students on the first row

who receive the direct sound. Those who are seated further back receive, besides the direct

sound, reflections that bounce off the roof and walls.

Solution: This example describes the function visually. When the sound wave from the

teacher hits the panel the energy is absorbed. The energy is absorbed by the material

without reflecting through the rest of the classroom which means that everyone gets the

direct sound rather than a mixture of reflections.

THE ABSORBENTS FUNCTION IN DIFFERENT ENVIRONMENTS

OFFICEIn this untreated room we get an unwanted flow of sound, such as undeciphe-

rable words. The results is that the room feels disturbed and chaotic.

Solution: In the treated room we apply absorbents on either side of the wall

which reduce the flow of sound. We also place absorbents on a non-parallel

surface to make the offices more enjoyable. We thereby increase the ability to

concentrate and sound environment.

THE BEST OF TWO WORLDSSince 2017 Decibel by Johanson cooperate with Saint-Gobain Ecophon AB, who are

world leading in room acoustic solutions. Ecophon develops, manufacture and adverti-

se room acoustic solutions that contribute to a work environment, which is beneficial to

people’s well-being and performance. Ecophon have business in over 20 countries with

an annual revenue of approximately 2 billion SEK and are a part of Saint-Gobain, one of

the largest corporations in the world.

Together we want to challenge the furnishing industry with solutions of tasteful design

as well as noise absorption that is second to none.

Put simply, Ecophon has, through their world leading competence and renowned pro-

ducts, given us the chance to integrate this into our design and unique offer.

These components together create and astounding range of noise absorbing products

that give Decibel’s customers the opportunity to create beautiful environments while

simultaneously ensuring a superior noise level.

SUSTAINABILITY – AN IMPORTANT PART OF OUR CONCEPT Decibel by Johanson strävar ständigt efter nya möjligheter och förbättrade egenskaper

med våra produkter. Vi lägger stor vikt på både våra leverantörers och vår egen produk-

tion samt vilka komponenter som ingår och dess miljöpåverkan.

FOCUSING ON THE INSIDEWorking with Ecophon, we have a supplier who takes these issues very seriously and

can account for the environmental impact of the core material. It is worth mentio-

ning that more than 70% of the glass content in the sound-absorbing glass wool is

made up of recycled glass. Collecting items like glass bottles via recycling stations in

Sweden and making them into sound absorbers is unique. Ecophon was the first in

the market to offer its product range made with a plant-based binder thus elimina-

ting the need for 24,000 barrels of crude oil per year. Ecophon’s products also have

a number of third-party certificates for ensuring a healthy indoor environment for

people. The production plant is based in Hyllinge, southern Sweden, and is powered

by electricity from 100% renewable sources.

COVERSThe fabrics used in our various sound absorbers are carefully selected and tested

according to the relevant standards by all our manufacturers.

Decibel’s aim is to ensure that none of the properties contributed by each of the

various components are altered or compromised in any way.

PRODUCT PROPERTIESIn a unique cooperation with Ecophon, world leading in room acoustics we are launching

a completely new concept.

As the only Swedish firm we have entered an agreement where knowledge and compe-

tence has been decisive factors for the result: world class sound absorbing solutions. The

choice of material in both the core and outer layers are therefore of the highest quality.

Environmentally friendly and qualified material that together with carefully considered

design challenges a world of sound.

All our products are carefully tested at well renowned laboratoriums and according to the

standards set in each market.

The production processes for the different components are environmentally certified

according to ISO 14001 and everything is produced at Hyllinge and Markaryd in Sweden.

Decibel by Johanson delivers sound absorbing products that make a difference.

HERTZ

HEIGHT 80 CM 80 CM 60 CM 60 CM 40 CMWIDTH 80 CM 40 CM 60 CM 30 CM 40 CMDEPTH 4/6/8 CM 4/6/8 CM 4/6/8 CM 4/6/8 CM 4/6/8 CM

ACOUSTIC PROPERTIESFrequency in Hz 63 125 250 500 1000 2000 4000 AwAbsorption Class A 0,1 0,53 0,96 1,24 1,25 1,16 1,07 1

Tested according to ISO 354 and ISO 11654

FIRE TESTHertz is tested by RISE according to SS-EN ISO 11925-2

CLOTHING MATERIALThe following cloths that we use for our sound absorption solutions are carefully selected and tested

according to the standard set by all the manufacturers

Camira Gabriel Cara HushCarlow Event ScreenFiji Xpress

MATERIALEcophon InsideChoice of fabric Mounting plate + screw

FRAMECHESTERFIELD / LOOP/ ROMB


MATERIALEcophon InsideMetal frame Wire grids Choice of fabric Mounting plate for magnets Magnets for mounting



FIRE TESTChesterfield / Loop / Romb is tested by RISE according to SS-EN ISO 11925-2




ILLUSION



ACOUSTIC PROPERTIESFrequency in Hz 63 125 250 500 1000 2000 4000 AwAbsorption Class A 0,03 0,19 0,61 1,02 1,02 1,12 1,16 0,95


FIRE TESTIllusion is tested by RISE according to SS-EN ISO 11925-2





MATERIALEcophon InsideChoice of fabric Mounting plate for magnets Magnets for mounting


POST


MATERIALEcophon InsideChoice of fabric Mounting plate for magnets Magnets for mounting



FIRE TESTPost is tested according to SS-EN ISO 11925-2




CLAMP WALL / FLOOR

HEIGHT 60 CMWIDTH 60 CMDEPTH 4 CMTOTAL.D 6 CM

MATERIALEcophon InsideChoice of fabric Metal frame




ACOUSTIC PROPERTIES 60 X 60Frequency in Hz 63 125 250 500 1000 2000 4000 AwAbsorption Class A 0,1 0,53 0,96 1,24 1,25 1,16 1,07 1


FIRE TESTClamp is tested according to SS-EN ISO 11925-2




MAG

HEIGHT 180 CMWIDTH 80 CMDEPTH 4,5 CM

MATERIALEcophon InsideChoice of fabric Top and botton in oakMagnets for mounting

ACOUSTIC PROPERTIESTest results will be presented in December 2018




FOREST

HEIGHT 150 CMWIDTH 50 CM DEPTH 5 CMTOTAL.D 40 CM

MATERIALEcophon InsideChoice of fabric Metal base







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www.decibelab.se

DECIBEL BY JOHANSON DELIVERS SOUND AB-SORBERS THAT MAKE A REAL DIFFERENCEThe Ecophon Inside™ label guarantees that

products bearing this brand have been de-

veloped together with Ecophon and that

the sound-absorbent materials are of the

highest Ecophon class. In addition, access to

all the necessary expertise within Ecophon

has been available to us during every phase

of the development process of these bran-

ded products. The sound absorbers are

designed and made with great attention to

detail to achieve high standards of techni-

cal performance combined with a visually

appealing design.

Ecophon Inside™ is a registered trademark

and must not be copied or used in any way

that has not been approved by Saint-Gobain

Ecophon AB.

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silencing through design fileAt an early stage humans developed five senses; taste, touch, sound,...

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