An echo makes the use of the festival hall of the youth welfare Waldhaus / Waldhausschule in Malsch almost impossible. The echo, or the sound reflections were so high that one could understand nothing more.

How should one get together and make music here? It was impossible!

But there is some help coming: the EnBW #MacherBus not only financially supports Waldhaus Jugendhilfe with the acquisition of new sound-absorbing elements, but the EnBW makers also undertake the attachment of the elements. With the new room acoustics measure the children of the Waldhausschule can use the hall again in peace and quiet.

Vital-Office also supported this project, supplied the vitAcoustic Frames for optimum sound absorption and led the assembly.

Links:
https://www.enbw.com/wir-machen-das-schon/aktionen/macher-bus/der-enbw-macher-bus-in-malsch/index.html
http://www.jh-waldhaus.de/Aktuelles-Reader/items/projekt-echo-durch-macher-der-enbw-erfolgreich-bewaeltigt.html

The time that people spend working in the office is a regular part of life that has impacts on people’s health. The office is a working environment with many physical and psychological demands, challenges, and stresses which have a long-term effect on the person working in an office. These demands, challenges, and stresses in offices can cause psychological problems and physical ailments. A meticulous and holistic design of the working environment, however, can promote creativeness and significantly contribute to the wellbeing of body and mind. This design also promotes productivity and innovation.

Schon lange mit uns auf dem Weg und immer wieder in sehr angenehmer Zusammenarbeit sind wir mit unserem Kunden Kunz-Schulze Immobilien. Sicher liegt das auch daran, dass Teile seiner Firmenphilosophie wie „Der Mensch steht bei uns im Vordergrund“ oder "wir leben unseren Beruf mit ganzem Herzen“ den unseren so ähnlich sind. Mit diesem Hintergrund machten wir uns an die Arbeit und entwarfen mit dem kreativen Team von Kunz Schulze Immobilien zusammen, ein sehr edles, modernes und lebendiges Büro, welches bis hin zu den eingesetzten Vital-Office (Möbel) Produkten das Firmenbild spürbar macht. "Die Qualität unserer Arbeitsumgebung bestimmt die Qualität unserer Arbeit" - Unsere ergonomischen Tische wurden aus einer Kombination von nachhaltigem massivem Bambus und Linoleum gefertigt, Die benötigten Aktenschränke erhielten eine schlichte Dekorfläche und wurden einseitig mit einer Bambusrahmen-/Akustik 3d-frames Konstruktion beplankt, um gleichzeitig ein angenehm raumakustisches Klima zu schaffen. Als zusätzliche schallabsorbierende Elemente wurden unsere Akustikmatten in Rollcontainern sowie Sichtschutzblenden der Schreibtische verarbeitet. Große Pflanztröge sorgen für ein gesundes Raumklima.

In order for a room acoustic measure to be calculated and assessed realistically, well-founded acoustic physical basic knowledge and practical experience is appropriate. In particular, the initial values of reality must be determined accordingly. For sensitive areas, the measurement should be carried out professionally by an acoustic expert. Alternatively, at least a provisional measurement should be performed with a phone app repeatedly. The provisional measurement serves only as a guideline for the selection of the room materials and their absorption coefficients in the acoustic calculator. Basically, any calculation without professional measurements of the initial situation is hypothetical!

Example:

Low frequencies are absorbed differently than high frequencies. Glass surfaces (Windows) or a normal office cabinet made of chipboard in different thicknesses, when you hit the resonance of the deep tones, can act for the low frequencies absorbing. However, a correct calculation is hardly possible due to the lack of measured data of the objects. On the basis of a measurement, special depth absorbers (vibrating resonators) need to be specifically set.

The calculations are based on measured data from objects and materials. Some of these are listed in the DIN 18041 exemplary. Others are taken from various sources for their correctness and conformity with the actual existing object or material there is no guarantee.

Area is important-small elements, for example, are simply overlooked by lower frequencies due to the long wavelength. Even with a-class absorbers, an adequately large absorbing surface is required in relation to the size of the room. In communication rooms, absorbers on the ceiling are sparingly and consciously dealt with. Here is more of a reflection desired!

Vital-Office therefore recommends the use of flexible acoustically effective products. Acoustic products that are divisible and easy to install and can be easily removed if necessary. This makes the investment in acoustically effective products more sustainable, more economical and more effective. For example, the VitAcoustic 3d frames. The VitAcoustic 3d frames have additional positive acoustic properties (among others on the lower frequencies) through the nested bamboo solid wood frames.

P.S. in the table "VO01" of the acoustic calculator, example values for a conference room and in VO02 for a club room are entered according to the adjacent 360 degree panorama picture.

Contributors to the Project acoustic calculator:

We are happy to share the original Excel with a contributing community similar to an open source project. Interested parties are kindly asked to contact [email protected] by e-mail. Further development steps are:

Extension and addition of the material and object database, in particular measured values of standard furnishings or entire exemplary facilities by room size.

Extension by further calculation formulas (currently only Sabine was chosen) and their comparative comparison.