On May 9-11 2022, Aalborg hosted the bi-annual Baltic Nordic- Acoustic Meeting (organized by the Nordic Acoustic Association), which this time is merged with the EUROREGIO (organized by the European Acoustics Association). The conference brought together academics, engineers, consultants, and other practitioners in the wide field of acoustics. Some of the really interesting presentations are […]
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Thermally Activated Building Systems (TABS) and acoustics
Sustainable building practices are here to stay and the number of building projects involving Thermally Activated Building Systems (TABS) is growing rapidly. However, from an office worker’s perspective, exposed concrete walls and ceilings create acoustic environments where it’s virtually impossible to communicate and concentrate. This detailed TABS Knowledge Guide explains how acoustic ceiling coverage impacts cooling […]
Ventilation through acoustic ceilings – What is diffuse ceiling ventilation?
Designing a holistic indoor environment can be challenging. It will often entail several compromises between quality of different aspects of well-being. It is extremely rare that a solution comes along that both enhances indoor comfort, reduces complexity of design while also saving money and lowering emissions. It definitely is extremely rare, but it happens. Diffuse […]
Nuanced room acoustics: Technical discriptors
Room acoustics is more nuanced than what is specified in most national requirements and regulations. If you, for example, wish to create a good sound environment in an open office environment, it is often better to consider multiple parameters and not merely the absorption area or reverberation time. The four primary technical basic terms that […]
The basics of room acoustics: Theory & terms
We at Acoustic Bulletin writes for both acousticians and sound enthusiasts of all types and levels of experience. This post is for anyone who is just entering the field of room acoustics. It contains only very simple and basic descriptions of the the main terms, but should provide enough detail to give you a firm […]
The soundscape design pyramid: A design aspect hierarchy model
There are many factors contributing to the quality of a sound environment. Especially in complex rooms like open offices, hospitals and learning environments. It is therefore important to have a clear understanding of how the different aspects of a design should be prioritised in relation to each other to ensure a high-quality outcome. Failing to […]
EIAS 2015 throwback: Four presentations on room acoustic descriptors
In anticipation of the next Ecophon International Acoustic Seminar (EIAS) we bring you these 4 presentations on acoustic descriptors from EIAS 2015. Much in the world has changed since 2015, but the need for more technical descriptors in evaluating room acoustic quality is not one of them. Technical objective descriptors provides us to more accurately […]
Guest post: Hearing and Listening with Human Ears
Marcia Jenneth Epstein, Ph.D. has once again contributed to Acoustic Bulletin with this guest blog post. We appreciate your work, Marcia! Read more about our guest blogger and find her other post here. Hearing is our ”second sense”. Phrases used in Western culture to demonstrate understanding – at least in English – are often visual: […]
Listening tests in room acoustics
Last June 24th, Daniel de la Prida defended his PhD thesis [1] at the Technical University of Madrid (Spain). His research focused on the assessment of the subjective perception both in architectural and environmental acoustics. In the following, a summary of Daniel de la Prida’s research (mostly focused on room acoustics) is given. All the […]
Soundscapes: A perceptual design tool on the rise
How we perceive the sounds around us is dependent upon their inherent acoustic characteristics but also their associated meanings, context and our experience. We individuals shape the frame of reference. Exposure to unwanted, negative sounds (noise!) impacts our quality of life. Until now, our primary goal in acoustics has been to solely reduce the negative […]
