Comparative Analysis of Two Acoustic Simulation Software
In this work, firstly a comparative analysis of the acoustic simulation programs RAYNOISE and ODEON was carried out. Secondly, the influence of the modeling accuracy on the convergence was analyzed. For the first objective, the same model was simulated with both programs. For the second objective, four geometric models of a room with different degrees […]
The Acoustical History of Hagia Sophia revived through Computer Simulation
The present paper deals with acoustic computer simulations of Hagia Sophia, which is characterized not only by being one of the largest worship buildings in the world, but also by – in its 1500 year history – having served three purposes: as a church, as a mosque and today as a museum. The investigation is […]
Modelling in Auditorium Acoustics – From Ripple Tank and Scale Models to Computer Simulations
The paper deals with the tools for the acoustic design of auditoria, and the development of these tools during the last century. Ripple tanks could model the wave nature of sound in a reflecting enclosure, but only in two dimensions. Scale models using high frequency sound waves have been used for testing the design of […]
Parken, Copenhagen – acoustic simulation
Room Acoustic Simulation and auralization – How close can we get to the real room
The paper describes the state-of-the-art of room acoustic auralization and the results of two different ways to validate the quality. The first method is an objective measurement of room acoustic parameters from the simulated impulse response using a monaural auralization filter. The measurement results are compared to the calculation results from the simulation. The other […]
[N541] Evaluation of the Modelling and Auralization of Two Concert Halls
The work aims to investigate the parameters influencing the perceived acoustic quality of auditoria. The paper deals with the evaluation of acoustic simulation and auralization for the prediction of acoustic quality of concert halls. Two real halls, Vienna Grosser Musikvereinssaal and London Royal Festival Hall, were modeled using the computer modeling application, Odeon V.5.0. The […]
Roman Theatre Acoustics; Comparison of acoustic measurement and simulation results from the Aspendos Theatre, Turkey
Room acoustic measurements have been carried out in the best preserved of all Roman theatres, the Aspendos Theatre in Turkey. The results are compared with simulated values from a rough as well as a very detailed ODEON model of the theatre.
Sound Source Representation for Auralization
For auralization in room acoustics there are several problems related to the sound sources. The anechoic recordings used for auralization can give problems due the microphone position used for the recording. In the room acoustic simulation there are other problems related to the source representation. Whereas some sources may be sufficiently represented by point sources […]
Interactions of Model Detail Level and Scattering Coefficients in Room Acoustic Computer Simulation
A previous study by the author showed that varying the geometric detail level across a normal range for room acoustic computer modeling has little effect on the results of those computer simulations, if major surfaces in the hall are still constructed accurately. Scattering coefficients were kept constant across all detail levels. If one were using […]
Predicting the acoustics of ancient open-air theatres: The importance of calculation methods and geometrical details
For more than a decade now, computer simulations of sound fields in rooms have been widely adopted in research and for consulting purposes. Most computer simulations are either based on geometrical room acoustics or statistical methods, hereby neglecting diffraction and interference effects. The calculation algorithms in this type of simulations often combine the image-source method […]
