## 4 Conclusions  
In view of the data obtained, the calibration carried out on the acoustic model in both pieces of software, ODEON and CATT-Acoustic, is considered valid, presenting the ODEON simulation with better JND values. These results show the applicability of the tools and procedures used in closed spaces for the acoustic study of open and semi-open heritage environments, being necessary to make certain adaptations. For the acoustic simulation it was necessary to lift a closed model in which a 100% absorbent material was applied to the surfaces representing the free field. This procedure was satisfactory, in line with results obtained in similar investigations carried out in open and semi-open environments [6, 7, 8, 9, 10, 46, 47]. In case of the Water Tribunal environment, it was convenient to perform the calibration with the energy parameters C80 and C50, given that the temporal parameters T30 and EDT present a greater variation depending on the location of the source and the receivers, in contrast with the usual results in rooms and closed rooms [21]. The simulations carried out with both pieces of software adequately reproduce the behavior of the temporal parameters C80 and C50. On the other hand, it can be observed that the results of the T30 and EDT parameters better fit the measurement at medium and high frequencies, while at low frequencies there is a higher variation, which is in agreement with the results obtained by [PERSON] et al. in his acoustic study undertaken in an open environment [47]. The measurement of the bailiff source, together with its application to the acoustic environment of the Placa de la Verge (Virgin Square) in Valencia, allowed us to obtain a dynamic auralization which was combined with the images of a pathway in the square, and the result was a video which was presented with the soundscape survey. The soundscape perception was evaluated through this survey containing the so-called Swedish protocol. With this survey, applied to 30 listeners, we found that the environment was appreciated just as a little chaotic and annoying, due to the reverberation, but quite pleasant as the main source is highly appreciated in the auralization. In this research, the application of virtual acoustics in the study of an open environment of great heritage value was deepened. As a result, an analysis of the acoustic behavior of this unique environment was performed. Likewise, the acoustic and visual simulation of the surroundings of the Water Tribunal of the Plain of Valencia was obtained, disseminated on the official page of the Virtual Acoustics Research Group of Universitat Politecnica de Valencia [43], which allows anyone to enjoy the acoustics and architecture of this unique environment from anywhere.This is especially interesting in the current health emergency situation caused by COVID-19, offering the possibility of remote tourism. Likewise, if, in the future, the soundscape suffers alterations of any kind, a detailed compendium of visual and sound information on its current state would be available, which would guarantee its conservation and allow future generations to enjoy and study it. As a future line of research, it is proposed to delve into the generation of interactive acoustic and visual models in open environments, in which the viewer can move freely, listening and observing the same as if they made a face-to-face visit. Currently, work is being carried out on the development of interactive acoustic and visual models using the Unity software. **Author Contributions:** Conceptualization, E.D.-R., J.S.-G. and A.G.-P.; methodology E.D.-R., J.S.-G. and A.G.-P.; software, E.D.-R., J.S.-G., R.F.-J., S.C. and R.M.C. ; validation, E.D.-R., S.C. and R.M.C. ; formal analysis, E.D.-R. and R.M.C.