RT journal article T1 Assessing the Soundscape Appropriateness in the Vicinity of a Heliport in an Urban Park of Quito (Ecuador) Using Immersive Audio-Visual Scenarios A1 Puyana Romero, Virginia A1 Cueto Ancela, José Luis A1 Caizapasto-Sánchez, Ismael Sebastián A1 Marcillo-Calispa, Gabriel Eduardo A2 Ciencias y Técnicas de la Navegación y Construcciones Navales K1 helicopter noise K1 soundscape K1 acoustic environment K1 quiet areas K1 Immersive Virtual Reality AB Heliports are facilities that play a fundamental role in security and emergency operations. Since rotorcrafts do not need much space for take-off and landing, heliports are normally immersed in the urban fabric of our cities. However, they generate high noise levels, which can cause a nuisance, especially in outdoor areas intended for the recreation of citizens. This paper studies how helicopter noise affects the perception of the soundscape appropriateness and landscape quality in the vicinity of a heliport located in an urban park, using semantic differential scales and appraisals on the noise sources. The study area was the "Parque del Bicentenario" in Quito, Ecuador. Immersive Virtual Reality (IVR) laboratory tests using 360-degree videos and spatial audio were preferred to on-site questionnaires, given the difficulty of predicting when helicopter noise events would occur. For the statistical analysis, objective acoustic and psychoacoustic parameters have also been considered. Results show that the soundscape is perceived as more pleasant and less chaotic when there is no helicopter noise. Furthermore, with the same visual stimuli, the appraisals of the landscape are much better in the scenarios without the helicopter noise. Sharpness is the psychoacoustic parameter that best explains the variance of the subjective variables evaluated. PB MDPI SN 1660-4601 YR 2022 FD 2022-05 LK http://hdl.handle.net/10498/27213 UL http://hdl.handle.net/10498/27213 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-nov-2026