A room acoustical computer model for industrial environments – the model and its verification
This paper presents an extension to the traditional room acoustic modelling methods allowing computer modelling of huge machinery in industrial spaces. The program in question is Odeon 3.0 Industrial and Odeon 3.0 Combined which allows the modelling of point sources, surface sources and line sources. Combining these three source types it is possible to model […]
Akukon Oy Consulting Engineers
Modelling Large sound sources in a room acoustical calculation program
A room acoustical model capable of modelling point, line and surface sources is presented. Line and surface sources are modelled using a special ray-tracing algorithm detecting the radiation pattern of the surfaces in the room. Point sources are modelled using a hybrid calculation method combining this ray-tracing method with Image source modelling. With these three […]
Comparisons between Computer Simulations of Room Acoustical Parameters and the ones Measured in Concert Halls
11 European concert halls were surveyed in 19891). In this paper, comparisons are made between the room acoustical parameters measured and those obtained from computer simulations using the ODEON2), 3) program version 5.0 on these 11 concert halls. Four kinds of models each concert hall are produced in computer simulation. The one is computer simulation […]
The Use of Computer Modelling in Room Acoustics
After decades of development room acoustical computer models have matured. Hybrid methods combine the best features from image source models and ray tracing methods and have led to significantly reduced calculation times. Due to the wave nature of sound it has been necessary to simulate scattering effects in the models. Today’s room acoustical computer models […]
Computer Simulation of the Acoustics of Mosques and Byzantine Churches
The EU project CAHRISMA (Conservation of the Acoustical Heritage by the Revival and Indentification of the Sinan’s Mosques Acoustics) investigates, among other things, the acoustics in some of the old churches and mosques in Istanbul, Turkey. The present paper deals with acoustic computer simulations of churches and mosques within this project.Three Byzantine churches: Saint Sophie, […]
Visualising acoustic surface properties, using colours
The OpenGL™ rendering engine, which comes with the Windows PC operating system, allows display of room geometries, which have been modeled for room acoustics prediction purposes. Viewing a 3D geometry as a surface geometry rather than as a wire frame, allows easy detection of geometrical errors like holes and missing surfaces. However with an appropriate […]
Comparisons between Computer Simulations of Room Acoustical Parameters and the ones measured in Concert Halls
A number of European concert halls were surveyed in 1989. In this paper comparisons are made between measured room acoustical parameters and those obtained from computer simulations on concert halls using the odeon program version 3.1. The key parameter compared with measured data is the reverberation time, and this is mainly used to adjust the […]
Odeon a design tool for auditorium acoustics, noise control and loudspeaker systems
The ODEON software was originally developed for prediction of auditorium acoustics. However current editions of the software are not limited to these fields, but also allow prediction in rooms such as churches and mosques, interior noise control, design of room acoustics and sound distribution systems in public rooms such as foyers, underground stations and airports. […]
Comparison between In-situ recordings and Auralizations for Mosques and Byzantine Churches
The CAHRISMA project (Conservation of the Acoustical Heritage by the Revival and Identification of the Sinan’s Mosques Acoustics) investigates, among other things, the acoustics in some of the old churches and mosques in Istanbul. The present paper deals with acoustic computer simulations and in particular comparison between In-situ recordings and auralization obtained from simulations carried […]
