Investigación

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Documentos generados por los docentes e investigadores de la Universidad en su labor de investigación científica producida o editada por los departamentos y centros de la Universitat Politècnica de València.

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Browsing Investigación by Sponsor "Aalto-Yliopisto"

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    Publication
    A conceptual model of the social-ecological system of nature-based solutions in urban environments
    (Springer-Verlag, 2021-02) Tzoulas, Konstantinos; Galán Vivas, Juan José; Venn, Stephen; Dennis, Matthew; Pedroli, Bas; Mishra, Himansu; Haase, Dagmar; Pauleit, Stephan; Niemela, Jari; James, Philip; Dpto. de Urbanismo; Escuela Técnica Superior de Arquitectura; Aalto-Yliopisto
    [EN] This article provides a perspective on nature-based solutions. First, the argument is developed that nature-based solutions integrate social and ecological systems. Then, theoretical considerations relating to relational values, multifunctionality, transdisciplinarity, and polycentric governance are briefly outlined. Finally, a conceptual model of the social¿ecological system of nature-based solutions is synthesised and presented. This conceptual model comprehensively defines the social and ecological external and internal systems that make up nature-based solutions, and identifies theoretical considerations that need to be addressed at different stages of their planning and implementation The model bridges the normative gaps of existing nature-based solution frameworks and could be used for consistent, comprehensive, and transferable comparisons internationally. The theoretical considerations addressed in this article inform practitioners, policymakers, and researchers about the essential components of nature-based solutions. The conceptual model can facilitate the identification of social and ecological interconnections within nature-based solutions and the range of stakeholders and disciplines involved.
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    Publication
    Effects and applications of spatial acuity in advanced spatial audioreproduction systems with loudspeakers
    (Elsevier, 2020-04) López Monfort, José Javier; Gutiérrez Parera, Pablo; Savioja, Lauri; Escuela Técnica Superior de Ingeniería de Telecomunicación; Dpto. de Comunicaciones; Instituto Universitario de Telecomunicación y Aplicaciones Multimedia; Aalto-Yliopisto; AGENCIA ESTATAL DE INVESTIGACION; MINISTERIO DE ECONOMIA Y EMPRESA
    [EN] Spatial audio reproduction systems using loudspeakers produce coloration effects at high frequencies due to spatial interference between loudspeakers, in both those based on panning and those based on field synthesis. As a response to this problem and in order to reduce coloration, this paper studies the feasibility of an alternative approach where high-frequencies are reproduced from a single loudspeaker, with a different direction from that of its panned low-frequency counterpart. Listening tests are conducted to investigate the localization and quality of the source in the case that frequencies higher than 1.5 kHz are reproduced from a different direction than the low frequencies. In this context, the human ability to discriminate the spatial direction of low/high frequency bands and the error in the perceived direction of arrival for different separation angles is evaluated and quantified. The resulting data has been analyzed with ANOVA, providing significant results that allow us to establish a threshold in the angular separation of the high and low frequency parts where subjects do not perceive source location artifacts. The term just noticeable band splitting angle (JNBSA) is defined and introduced. It represents the minimum angle of separation between high and low frequencies from which the listener starts to perceive artifacts in the reproduction of a sound source using loudspeakers.