Ecophon Acoustic Bulletin

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March 21, 2005

New research into the Effects of Noise

Ecophon is supporting a research study conducted at Cardiff University, School of Psychology by Professor Dylan Jones and Dr Simon Banbury. The aim is to look at the effects of stress and anxiety on the disruption of tasks by office noise.

Both high fidelity recordings of office sounds and naturalistic simulations of office tasks under laboratory conditions have been utilised in the study. Arup Acoustics have assisted the recordings, monitored and calibrated the acoustics of the experimental set-up as well as analysed the data.
The performance tests are presently being conducted at the laboratory of the School of Psychology, Cardiff University.
Study design
A simulation of an open plan office was made, by replaying typical office noises (anechoic recordings of various office sound sources such as, ringing telephones, slamming doors, photocopiers and telephone conversations) through a series of loudspeakers and to record these using a ‘dummy head’.
In addition noise levels were measured at the time of recordings to enable the replay levels to be adjusted to the correct level within the test set-up.
The office arrangement was then fitted with an acoustically absorptive respectively a reflective ceiling.
Press release

March 20, 2005

Room acoustics in health care

The acoustic conditions in hospital buildings are becoming a topic in the medical community. Some environments, like intensive care or care for premature children (neonatal care), have recently been studied. There is a worry that premature children who are subjected to high noise levels will suffer health problems later on in life and that they might become more sensitive to stress. A review on acoustic recommendations for neonatal wards can be found in the 2004 June issue of Clinics in Perinatology.


Another study focused on the impact of room acoustics on the working environment for nurses as well as patient well being. The findings are now available in the 2005 March issue of the journal of Occupational and Environmental Medicine and the February issue of the International Journal of Cardiology.

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March 19, 2005

New Regulations Could help Thousands of Children

The new Building Regulation 93 (BB93) – Acoustics in School Design in UK includes stricter requirements on noise levels and reverberation time within classrooms. It also contains increased recognition for hearing impaired children and new requirements on sound insulation. Very interesting is the introduction of third party control bodies to ensure designs conform to BB93.

Read more>>

March 18, 2005

Are you designing a school and need room acoustic details?

Do you need brief information on activities that matters from a room acoustical point of view in a classroom, or perhaps in a play- and activity room in a pre-school? Do you need an update on what reverberation times standards suggest in rooms for education?
Have a look at the 15 most common room types in educational premises today.
Or read more about why it is so important with good acoustical conditions in educational facilities.
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March 17, 2005

To what extent does a ceiling contribute to privacy between work stations?

The concept of speech privacy in offices relates to the degree of speech disturbance between two individuals who are not in conversation with each other. One is talking and the other one “happens to hear”:
* speech is intrusive since it is not useful to the listener (poor speech privacy = disturbance)
* speech of personal character is “leaking” from the speaker to surrounding workstations. (poor speech privacy = frustration)

An acoustic ceiling’s ability to effectively dampen speech energy within the critical frequency intervals is therefore crucial. This quality can be described by mean of a single value: Articulation Class (AC).

Read more about Speech privacy (see Speech intelligibility)>>

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March 16, 2005

Ecophon Master E in science labs – Scientific test for Ecophon panels

In a large project in the UK Ecophon Master E was used both for refurbishment and to create new science labs. This product has an excellent sound absorption in combination with efficiency at absorbing low frequency sound.
Read the full story>>

Within the Master E range there are three different options for the shape of the sound absorption curve, Alpha, Beta and Gamma. Read more about Ecophon Master product range>>

March 15, 2005

*Ecophon Master D – excellent acoustics combined with complete demountability
*Ecophon Focus™ Wing E – new edge detail for Focus™ Wing acoustic perimeter system
*Ecophon Super G Plus – acoustic design for sportive people

March 14, 2005

Ecophon presents two papers at Inter-Noise 2005

Carsten Svensson: “Accessibility for disabled people with regards to acoustics – an overview of the situation in Sweden”
Nils-Åke Andersson: “Solutions for sound insulation including suspended ceilings”
We look forward to see you in Rio at Inter-Noise 2005!

March 13, 2005

Future offices – people and environment

Are you involved in the process of creating good work places in offices? Ecophon will arrange a one-day seminar in Copenhagen on May 12, 2005.

Topic - The influence of the indoor environment on people in offices
We have invited experts from both Denmark and Sweden who will share their knowledge and experiences. The seminars will be held in Danish and Swedish.

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