Vital-Office goes its own way with its ergonomics concept. Inspired by the power of nature, Vital Office understands the "living space” called workplace under holistic aspects. That why Vital Office focuses on the combination of flexibility, space efficiency, ergonomics, acoustics, light and perceived product value.
Peter Jordan has lectured about the “Vital-Office Concept” since 2006. E.G. International Congress of Facility Management in Frankfurt and the International Conference on Scientific Feng Shui & Built Environment at Hong Kong City University.
Today Peter Jordan presents
- new Acoustic solutions for wall, ceiling and furniture and
- an introduction to sound physics,
- Din 18041 audibility in rooms - requirements and advice for the planning of offices, conference rooms etc.
- We will also learn how to calculate a room with the acoustic calculator.
Content of talk:
Room Acoustics versus Building Acoustics
1.Noise gets blocked from one room to another
2.Noise is reflected within one room
Noise Frequencies
Wave length
Reverberation time / Echo
Reverberation time (Examples)
Church: 4 - 8 sec.
Public swimming pool: 1.7 sec.
Concert hall with classic music: 1.5 sec.
Classroom in school: 0.6 sec.
Conference room: 0.8 to 1.2 sec.
Office room: 0.5 to 0.8 sec.
The problem of Echo (Reverberation time)
Sorry, what did you say?
I could not understand.
Please repeat.
Please speak louder *********
Reverberation time and personal impression
Low frequencies too long + high frequencies to long: Washed out and bad to understand
Low frequencies too long + high frequencies to short: Dull, droning, but good to understand
Low frequencies too short + high frequencies to long: Shrill, clanking, pointed, bad to understand
Low frequencies too short + high frequencies to short: Dry but good to understand
DIN 18041:2016-03
Room types:
– A1: "Music";
– A2: "Language/Lecture";
– A3: "Teaching/Communication" as well as "language/lecture inclusive"
– A4: "Teaching/Communication inclusive";
– A5: "Sport".
Room type B1:
Rooms without quality of stay
Entrance halls, hallways, staircases, etc. as a pure traffic area (excluding traffic areas in schools, children's day facilities, hospitals and nursing facilities)
Room type B2:
Rooms for short-term stay
Entrance halls, hallways, staircases, etc. Traffic areas with a quality of stay (reception area with waiting areas), showrooms, switch halls, changing rooms in sports halls
Room type B3:
Rooms for longer-term stays
Showrooms with interactivity or increased noise (multimedia, sound etc.), traffic areas in schools and children's Day facilities (kindergarten, nursery etc.), traffic areas with quality of stay in hospitals and nursing facilities (e.g. open waiting areas), patient waiting rooms, break areas, bed rooms, dorms, operating rooms, treatment rooms, examination rooms, consultation rooms, dining rooms, canteens, laboratories, libraries, sales rooms
Room type B4:
Rooms with a need for noise reduction and room comfort
Reception/switch area with permanent work place, laboratories with permanent work place, lending areas of libraries, output areas in canteens, residents ' rooms in nursing facilities, Citizen's office, offices
Room type B5:
Rooms with special need for noise reduction and room comfort
Dining rooms and canteens in schools, children’s day facilities (kindergarten, nursery etc.), hospitals and nursing fac
Acoustic tests - How to read and evaluate
- Look at the details carefully
- Compare chart with product
Acoustic calculation - Example 1: OFFICE with 8 people (B4)
Step by step testing:
- Sound absorber in Window top corner
- Sound absorber at wall
Wall picture frames
- Sound absorber at ceiling
Acoustic calculation - Example 2: Conference room
- Sound absorber at wall
Wall picture frames
- Sound absorber at ceiling
Acoustic products - Examples