ODEON, A Design tool for noise control in indoor environments
Some rooms are much noisier than other, even with the same noise sources. For the design of low-noise indoor environments it is crucial that both the noise sources and the surrounding room surfaces are taken into account. Using a room acoustic computer model the first step is to model the room surfaces in terms of […]
Distribution of Background Noise in the Classroom and it´s Influence to Speech Intelligibility
Schools often tolerate noisy classrooms. Managers may find acoustical treatment expensive and difficult, or they may not even recognize the problem. However, poor acoustics interferes with speech intelligibility which influences the teaching and learning process. Speech intelligibility can be described by STI values, which depends on the background noise level and the reverberation in the […]
Virtual Acoustics for Localization of the Speaker in a real and Virtual Reverberant Room
Room Acoustic Simulations of Multi-Source Environments
Assessment of musical instrument performances for practice rooms by musicians
This paper continues to discuss how a specific musical instrument impacts the design of practice rooms. In the previous paper six instruments (violin, clarinet, trumpet, xylophone, piano, and guitar) and a choir performance are assessed. The reverberation time (RT) is a starting acoustical consideration and the floor area is a starting architectural consideration. The rooms […]
Assessment of room absorption by normal and hearing impaired people
Investigations of Multi-channel Auralization Technique for Solo Instruments and Orchestra
Computer modeling of room acoustics is a useful tool in the design of acoustically sensitive spaces and an important outcome from these programs is auralizations. This study examined the perceived changes in realism and source width when listening to multi-channel auralizations compared to single channel auralizations for both solo instruments and a full orchestra. The […]
Types of ancient theatres and their acoustical characteristics
Reflector Responses: A Comparison Between ODEON’s Modified Ray Tracing Algorithm and a Filtered Boundary Element Method Model
The biggest challenge for geometrical room acoustic computer models is to capture complex wave phenomena while maintaining the low computational load of the ray tracing algorithm. Special corrections must be added to the ray tracing algorithm to account for wave phenomena such as edge diffraction, which are ignored by classical geometrical acoustics. ODEON, a well-known […]
Open-plan Office Environments: A Laboratory Experiment to Examine the Effect of Office Noise and Temperature on Human Perception, Comfort and Office Work Performance
A human subject experiment was performed to examine the effect of office noise and temperature on human perception, comfort and office work performance. The experiment concerned offices of two different sizes with three different acoustical treatments. An open-plan office environment was simulated by playing office sounds through a surround-sound speaker system. The sound background was […]
