Comparative results for Room 10 of Round Robin 4 obtained by the software RAIOS 7
DOI:
https://doi.org/10.55753/aev.v33e50.85Keywords:
computational code RAIOS 7, Round Robin 4, room impulse responses, room acoustics simulation, room acoustics quality parametersAbstract
This paper describes and analyzes a small portion of the results obtained by the RAIOS 7 room acoustics numerical simulation software in the first international intercomparison of simulation software, with auralization called Round Robin 4 (RR4). This was the most complete international intercomparison, promoted and organized by two German universities, and nine rooms, totaling 25 different configurations were given for simulation This paper shows the general structure of RR4, presents the current version of the software and discusses the monaural results obtained by RAIOS 7 code, compared to the measurement data made by the RR4 team, for five source-microphone pairs in the room called Scene 10, in the form of some acoustic quality parameters, namely: T20, EDT, C80 and D50 by octave bands. The results evidence that there are deviations from the measured values in all parameters for the five positions, especially at low frequencies. Then, for one source-microphone pair, the deviations with respect to the measured values of the other software participating in RR4 are presented. It is shown that the observed deviations obtained by RAIOS 7 code are in the lower third of the deviations of the other room acoustics simulation software.
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