Investigations of Incorporating Source Directivity Into Room Acoustics Computer Models to Improve Auralizations

2008 ◽  
Vol 124 (5) ◽  
pp. 2664-2664 ◽  
Author(s):  
Michelle C. Vigeant
Keyword(s):  
Computer Models ◽  
Room Acoustics ◽  
Source Directivity

Recent Progress in Room Acoustical Computer Simulations

1997 ◽  
Vol 4 (4) ◽  
pp. 229-246 ◽  
Author(s):  
Michael Vorländer
Keyword(s):  
Computer Simulations ◽  
Recent Progress ◽  
Computer Models ◽  
Round Robin ◽  
Simulation Software ◽  
Room Acoustics ◽  
Concert Hall ◽  
Sound Fields ◽  
Verification Test ◽  
Wave Phenomena

In the last decade computer simulations of sound fields in rooms have been developed for application in research and consulting. Some programs are commercially available. Most computer models are based on geometrical room acoustics and/or on statistical (radiosity) methods, thus not including wave phenomena such as diffraction. The uncertainty of typical simulation software was investigated in an international verification test in 1994 and 1995. The results were partly promising although some programs were not as reliable as the operators expected. These round robin tests have been continued until today with simulations and measurements in a concert hall in Jönköping in Sweden. In this paper the basic algorithms of room acoustical computer simulations, the verification in round robin tests and the observed accuracy and limitations are summarised. Finally, possible improvements are discussed.

Case studies of troubleshooting room acoustics problems using critical listening, field measurements, and computer models

2007 ◽  
Vol 121 (5) ◽  
pp. 3152-3152
Author(s):  
Gary W. Siebein ◽  
Robert M. Lilkendey ◽  
Hyun Paek ◽  
Edwin S. Skorski
Keyword(s):  
Case Studies ◽  
Field Measurements ◽  
Computer Models ◽  
Room Acoustics

Computer models in room acoustics: The ray tracing method and the auralization algorithms

2009 ◽  
Vol 55 (6) ◽  
pp. 821-831 ◽  
Author(s):  
Anna Pompei ◽  
M. A. Sumbatyan ◽  
N. F. Todorov
Keyword(s):  
Ray Tracing ◽  
Computer Models ◽  
Room Acoustics ◽  
Ray Tracing Method ◽  
Tracing Method

Interpreting Open- and Closed-Loop Transfer Relations Between Cardiorespiratory Parameters: Lessons Learned from a Computer Model of Beat-to-Beat Cardiovascular Regulation

1997 ◽  
Vol 36 (04/05) ◽  
pp. 237-240
Author(s):  
P. Hammer ◽  
D. Litvack ◽  
J. P. Saul
Keyword(s):  
Computer Model ◽  
Closed Loop ◽  
Computer Models ◽  
Cardiovascular Regulation ◽  
Cardiovascular Control ◽  
Lessons Learned ◽  
Multiple Systems ◽  
Response Characteristics ◽  
Similarities And Differences

Abstract:A computer model of cardiovascular control has been developed based on the response characteristics of cardiovascular control components derived from experiments in animals and humans. Results from the model were compared to those obtained experimentally in humans, and the similarities and differences were used to identify both the strengths and inadequacies of the concepts used to form the model. Findings were confirmatory of some concepts but contrary to some which are firmly held in the literature, indicating that understanding the complexity of cardiovascular control probably requires a combination of experiments and computer models which integrate multiple systems and allow for determination of sufficiency and necessity.

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