For practical reasons, most measurements of acoustics in ancient Greek theatres are made without an audience. Under those conditions much of the sound reaching the listener is in the form of reflections from the curved stone risers that form the seating. These reflections would be attenuated or eliminated by the audience. Let´s explore the Epidauros […]
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Listening tests: linking objective room acoustic parameters with subjective human perception
Daniel de la Prida from Carlos III University in Madrid presented about his study into listening tests. He focussed on tests that can be used for linking objective room acoustic parameters with subjective human perception. Such tests have been in use for many years. However, different research usually employs different test protocols, with different operational […]
Acoustics for restaurants in Brazil – Overview and a Study case
Brazil is known as a country with rich and varied gastronomy. Studies from 2022 indicate that there are about 736,000 restaurants in Brazil, and 56% were opened in the last three years. São Paulo, is the largest city in the country and was selected by Traveller’s Choice as the seventh-best gastronomic destination in the world. […]
Wave-based virtual acoustics integrated into the building design process
Finnur Pind is a co-founder and CEO of Treble Technologies. At EIAS 2023 he presented the background of wave-based virtual acoustics and the merits of what they claim to be a paradigm shift within the area of virtual sound. An acoustic design platform called Treble. Wave-based virtual acoustics The core of the platform, as described, […]
The effect of sound absorbers and diffusers in ordinary public rooms
Introduction Emma Arvidsson, Researcher and PhD ”Acoustic Design with Regard to Human Perception” presented her recent Phd study at EIAS2023. She focused on the objective and subjective aspects of acoustic design in ordinary rooms. Aiming to optimize room acoustics and examining the effects of different sound absorbers and diffusers. ‘Acoustic design plays a crucial role […]
Problems of Absorption Coefficients as input data for room acoustic simulations
Cheol-Ho Jeong, Associate Professor of acoustics at the Technical University of Denmark, talked at EIAS 2023 about the problems of using absorption coefficients as input data for room acoustic simulations. Cheol-Ho has since his professorship in 2011 among many things engaged himself regarding the difficulties surrounding the use of the absorption coefficient, as defined by […]
The Magic of the Multi-purpose Hall – Henrik Möller at EIAS2023
On the second day of EIAS2023 it was time for “multi-acoustian” and keen debater at the seminar – Henrik Möller – to have his speech about the magic of multi-purpose halls and the problems often faced when building them. Challenging task Multi-purpose halls are versatile indoor venues designed to accommodate a wide range of events […]
Active room acoustics through electroacoustics: Amadeus Acoustics
One of the most common questions that you will hear in active room acoustics is: “what would be the best reverberation time for my room and how do I get there?”. The counterquestion needs to be: “what do you want to do in your room?”. And therein lies one of the common problems for room […]
The sound of absorption – an experience!
How would you explain the experience of good sound absorption in a room? To truly understand the value of better acoustics you need to experience it firsthand. This is why we have built two identical rooms with different absorption in our showroom Ecorama at the Ecophon headquarters in Hyllinge, Sweden. Here you can experience the […]
Classic Acoustics and Psychoacoustics – Similarities and Differences
Right after the grand opening of EIAS 2023, it was time for Alice Hoffman Senior Acoustician, PhD from Brekke and Strand, to make her entrance. She took us on a journey to see how Classical Acoustics can be compared to Psychoacoustics. Her own thoughts on this are that it often seems to be a lot […]
