Category: HIGHLIGHTS | Back »
During November the Acoustic Bulletin group surpassed 1000 members. Following on from our article in march this year our group continues to grow with diverse input and discussions. We encourage you to participate and interact with the other room acoustic enthusiasts in the group. Click here to join.
The latest newsletter is now available online. Click here or use the newsletter archive on the right menu to read it. This newsletter was sent out on Tuesday July 3rd to all our subscribers. Subcribe today to stay fully updated.
The latest newsletter is now available online. Click here or use the newsletter archive on the right menu to read it. This newsletter was sent out on Thursday April 26th to all our subscribers. Subcribe today to stay fully updated.
The Acoustic Bulletin group on LinkedIN continues to grow, and discussions to flourish. With more than 730 members, quickly aproaching 750, the group provides a unique space for online discussions regarding room acoustics with other experts in the field. Click here to join.
The latest newsletter is now available online. Click here or use the newsletter archive on the right menu to read it. This newsletter was sent out on Thursday December 21st to all our subscribers. Subcribe today to stay fully updated.
The latest newsletter is now available online. Click here or use the newsletter archive on the right menu to read it. This newsletter was sent out on Thursday October 13th to all our subscribers. Subcribe today to stay fully updated.
The latest newsletter is now available online. Click here or use the newsletter archive on the right menu to read it. This newsletter was sent out on Tuesday July 5th to all our subscribers. Subcribe today to stay fully updated,
The Acoustic Bulletin group on LinkedIN continues to grow, and discussions to flourish. With over 300 members the group provides a unique space for online discussions regarding room acoustics with other experts in the field. Click here to join.
- Ever wished you could reach a post on the Acoustic Bulletin quickly and easily to show a friend or colleague?
- Ever wished you could do this without the need of your computer?
Well, now you can!
We are pleased to announce that a new mobile friendly version of the Ecophon Acoustic Bulletin has been introduced.
Just type acousticbulletin.com/m on your mobile's web explorer and start surfing. Bookmark it now!
A new function has recently been integrated below the left menu, making it possible to translate posts on Acoustic Bulletin to a number of languages. The service is powered by Google Translate and increases the sharing possibilities further, as language barriers now easily can be surpassed.
Try out the service right now and translate your favourite posts to another language in a matter of seconds!
As you may have noticed, some changes have recently taken place in the Ecophon Acoustic Bulletin. A new archive of quarterly newsletters has been integrated in the left hand menu, allowing you to read the latest newsletter online and have a look at earlier editions. If you haven't subscribed to the newsletter yet, you can subscribe now by clicking here.
In addition, the sharing possibilities have been improved, as new direct share links to Facebook, Twitter and LinkedIn have been added. Take the opportunity to share your favourite articles with your friends and collegues online, by clicking the share buttons at the bottom of the posts.
Changed flight paths affected health! Noise of the laundry machines disturbed the whole block! Offices workers in an open-plan solution with constant sound exposure from machinery, phones and office chatter had higher levels of adrenaline than workers in a more quiet environment! Noise influence health and wellbeing, and this is being more and more highlighted in life style media and news. Read more here!
Dutch sports teachers (PE teachers) sued their employers for suffering serious hearing impairment because of working in a poor acoustic environment. The schools that employed the PE teachers compensate the teachers financially.
The Dutch Royal Society of Physical Exercise Teachers (KVLO) http://www.kvlo.nl/ supports the teachers in this matter.
Continue reading "Poor room acoustics impairs sport teachers´ hearing" »
Over a million votes were cast worldwide in an online science experiment. University of Salford in UK and Professor Trevor Cox analysed the results of public perceptions of unpleasant sounds.
A study on acoustic ergonomics of schools was recently published by the Federal Institute for Occupational Safety and Health (Dortmund/Berlin/Dresden) in Germany. It covers room acoustics of schools, teaching styles, teachers’ health and pupil behaviour. Results show that room acoustic improvements leads to better working conditions, sound pressure levels decreases, pupils’ social behaviour becomes calmer, teachers experience a lower load and noise/sound level sensitivity.
The study was conducted by Dr. Markus Oberdörster and Dr. Gerhart Tiesler, under the umbrella of the Institute for interdisciplinary school research of the University of Bremen. Its original name is “Akustische Ergonomie der Schule” and an English translation (2006) is now available.
This study can be purchased at (www.baua.de) (direct link: http://www.baua.de/nn_8514/de/Publikationen/Forschungsberichte/2006/Fb1071e.html__nnn=true) or a condensed version can be downloaded as a pdf here (Download file">Modern School Acoustics - English)
For information contact: carsten.svensson@ecophon.se
Annex H is now added to the original version of the Finnish Standard SFS 5907, previously described in Ecophon Acoustic Bulletin and initially published 2004.
Annex H is informative and estimates the amount of Class A resp. Class C absorption material needed, as a percentage of the surface area of the space, with respect to various heights and reverberation times.
Continue reading "Room acoustics tool added to Finnish Standard SFS 5907" »
In 1999, acoustics expertise (incl. Delta and Carl Bro) was contacted to evaluate, measure and simulate the acoustics of the glass-roofed Sculpture Street at the New Statens Museum for Kunst, Copenhagen, Denmark.
Continue reading "From 11 to 3 s - extreme reverberation control" »
ECOTECT v5. is now launched.
Illustration: Square 1/ECOTECT
The software is developed by Square 1. It has been existing for some years but will be from this version more actively commercialised.
Continue reading "ECOTECT - Acoustic analysis and visualisation software" »
Ecophon interacts daily with acoustic consultants throughout the world. To further enhance this collaboration Ecophon will arrange a 5th International Acousticians' Seminar in Helsingborg in Sweden at the end of September 2006. The theme of the seminar will be “Innovations in room acoustics”.
Continue reading "Ecophon 5th International Acousticians' Seminar" »
German Standard DIN 18041 "Acoustical quality in small to medium-sized rooms" includes a table called “Guideline values for the free ceiling and wall surface areas to be covered with sound absorbers as a multiple of the room basic area (…)”. The table Download file presents for different room types the amount of sound absorbers to be used depending on their sound absorption performance (expressed as αw).
I asked two questions to Bernd Kunzmann, Chairman of the DIN Technical Committee responsible for the writing of DIN 18041.
The answers confirm that reduction of sound pressure level is at least as important as reverberation time as a room acoustic descriptor.
Continue reading "Reverberation time vs. amount of absorption in DIN 18041" »
This text is a short version of a student work completed by Malin Hultmark, architecture student at Chalmers University of Technology. As an internship, Malin created several building case studies of projects involving Ecophon solutions (example: DNRA office, DK). The numerous interviews made under that internship, together with extensive reading on acoustics and architecture inpired the text, asking for more "seeing acousticians and listening architects".
Share
