20Acoustics
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Transcript of 20Acoustics
STUDIO LINEE N V I R O N M E N T A L A C O U S T I C S
E V A L U A T E D E S I G N S P E C I F Y S U P P L Y
Normal office screen panels have no acoustic value at or below 1200mm in height .Furniture panels need to absorb ambient sound and block transmission betweenworkstations . There are a variety of methods used in the construction of these panelsto achieve the correct noise reduction coefficient ( NRC) of at least .75 .
ART at WORK
or suspended from a ceiling .
Acoustic panels or boards can be wall mounted
Acoustical privacy :
The attenuation of sound between neighbouring workstations in an open plan officeis typically much less than that potentially available beween closed plan offices .Nevertheless , a degree of acoustical privacy can be achieved if component selectionand interaction are understood . A successful open plan office is the result ofcareful co ordination of several components , some of which are -ceiling , wall treatments , furniture and furnishings and flooring .
Carpeting was not seenas effective as a soundabsorbing material in termsof acoustics .The reason being that thefrequencies absorbed arehigher than the range ofhuman speech .
Now there area wide range ofacoustical carpetsavailable - to meet the ever demanding challenges of modern environments .
Acoustics at ceiling level .
CEILINGS :The ceiling is the primary acoustical treatment in any office .Its acoustic function is to absorb sounds and reduce the reflection of sounds back down into office space .This helps reduce the distance over which noises and conversations can be heard .
In order of acoustic performance , from best to worst , ceiling types usually rank as follows ;fibreglass tile , mineral tile , perforated metal tile , no ceiling , solid metal tile ,and drywall . Generally there is a significant decline in acoustic performance with any of thelast four ceiling types .
There are mineral and perforated metal products available which demonstrate betterthan average NRC ratings . Since the ceiling is the key acoustic element in the office , failure to use aceiling tile will have a dramatic impact on the effectiveness of the space .Also any break in the ceiling tile will result in poor acoustic control .
The height of partitions is acoustically significant . Offices with partitions below aheight of 1250mm provide essentially the same acoustic benefits as those withno partitions systems . (from one workstation to another ) .Partition heights above 1750mm offer decreasing acoustic benefits relative to their costs .The absorbtion of partition systems is measured according to theSound Transmission Criteria ( STC ) .
It is important to minimize the number and size of reflective surfaces .Glass , metal and drywall components will increase the reflection of noise andconversation and cause them to be heard over a greater distance .
Minimize openings between , under and around furniture and panels tominimize sound paths .
LIGHTING :Acoustically lighting will increase the reflectivity of the ceiling . There a numberof lighting strategies which can provide excellent lighting whislt maintainingproper acoustics .
PHYSICAL ACOUSTIC BARRIERS .Physical acoustic barriers include plenum barriers , permanent walls , absorptivematerials above the ceiling tiles , and doors .
LAYOUT and DESIGN :Creative design can affect the proximity of noise sources to office occupantsand can affect the liklihood that noises will travel or be reflected from sourceto the listener .
FURNITURE AND PANELS :
45
WALLS
SCREENS
WALL PANELS
ACOUST IC ART
ACOUST IC CARPETS
ACOUST IC FABRICS
ACOUST IC FURNITURE
AND MANY, MANY MORE SOLUT IONS
L E S S N O I S E , B E T T E R L I F E . . .
Stu
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Stan
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Ergo
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Ligh
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Sche
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Effic
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Inte
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Des
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Spac
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Eval
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Envi
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Stan
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Art
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Stor
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Spec
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Furn
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Prof
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Besp
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Furn
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Envi
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Besp
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Furn
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Des
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Inte
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Des
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Spac
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Sche
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Ligh
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Furn
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Prof
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Envi
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Stor
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Art &
Des
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Floo
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Parti
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Envi
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Fit O
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Offi
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lann
ing
EVALUATE - DES IGN - SPECIFY - SUPPLY - COMPLETE SOLUT IONS
AT STUDIOLINE
We know about space and design
- and being cost effective -
Our profess ional service provides a complete solution
for the creation of any environment.
Partit ion Wall and Storage Wall systems, elegant in design
and aesthetically pleasing provide flexibi l ity and maintain
your investment.
Furniture to match the wall system compliments
the interior.
Design and specification caters for bespoke
furniture and fittings.
StudioLine Ltd., Briarleas, Julianstown, Co. Meath, Ireland.
Tel: Freephone 1800 384 400 / +353 (0) 41 983 8440 Fax: +353 (0) 41 982 9165
email: [email protected] Kevin Stanley Robert Tully A.Dip.Design MIDI
Registered in Ireland 400044
Project Office: Ferris House, Constitution Hill, Drogheda, Co. Louth, Ireland.