Now showing items 1-11 of 11

    • Active control of vibrations on flat plates for loudspeakers 

      Minguell Armengol, Joel (Universitat Politècnica de Catalunya / École Nationale Supérieure de Techniques Avancées, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Dans la recherche de nouveaux modes de diffusion sonore, on peut être amené à utiliser des structures diverses, allant du cone utilisé dans les haut-parleurs classiques à d'autres formes plus spécifiques. Ce stage propose ...
    • Analysis and characterization of coupled transmission lines loaded with complementary spiral resonators 

      Gil Galí, Ignacio; Fernández García, Raúl; Balcells Sendra, Josep (2011-02-21)
      Article
      Restricted access - publisher's policy
      In this study, the behaviour of coupled microstrip transmission lines loaded with complementary spiral resonators (CSRs) is analysed in depth. CSRs are constitutive elements for the synthesis of metamaterials with negative ...
    • Analytical simulations on active control of sound transmission through an aperture in a rectangular enclosure 

      Pàmies Gómez, Teresa; Romeu Garbí, Jordi; Arcos Villamarín, Robert; Martín Román, Sara-Regina (2014-03-01)
      Article
      Restricted access - publisher's policy
      This paper uses an analytical model of sound transmission through an aperture for the study of the performance of an active control of sound inside the enclosure to prevent the transmission of sound through an aperture ...
    • Etapa amplificadora d'alta sensibilitat per a prototipus lidar Doppler 

      Ballestà Lorite, Daniel (Universitat Politècnica de Catalunya, 2009-06-26)
      Master thesis (pre-Bologna period)
      Open Access
      L’objectiu d’aquest projecte ha estat dissenyar, construir i mesurar un amplificador d’alta sensibilitat i molt baix soroll, per tal d’adequar el senyal òptic detectat per un fotodíode en un sistema lídar atmosfèric ...
    • Modal-based prediction of sound transmission through slits and openings between rooms 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2013-03-04)
      Article
      Open Access
      The transmission of sound through slits and openings between cuboid-shaped rooms is analysed. A deterministic model that describes the pressure fields inside the rooms in terms of eigenfunctions and uses the Dirichlet-to-Neumann ...
    • Radiación acústica por superficies planas: aplicación a altavoces 

      Alba, Jesús; Ramis Soriano, Jaime; Espinosa, Víctor; Sánchez, Víctor (Universitat Politècnica de Catalunya, 2003)
      Article
      Open Access
      En los sistemas de reproducción sonora es habitual la utilización de altavoces dinámicos. Sin embargo, en aplicaciones específicas, puede ser necesaria y/o conveniente la utilización de altavoces alternativos con superficies ...
    • Rudiments of spatial audio synthesis 

      Girbau Xalabarder, Andreu; Nadeu Camprubí, Climent (2017-02-15)
      External research report
      Open Access
      For many application areas the binaural synthesis has become a field of interest. In this paper, we present the basics of bin- aural synthesis for 2 channels -left and right- providing exam- ples and figures, using ...
    • Sistema de adquisición y sintonización de un sistema lidar doppler 

      Leo Pérez, Miguel Ángel (Universitat Politècnica de Catalunya, 2007-02)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
    • Source ambiguity resolution of overlapped sounds in a multi-microphone room environment 

      Chakraborty, Rupayan; Nadeu Camprubí, Climent; Butko, Taras (2014-04)
      Article
      Open Access
      When several acoustic sources are simultaneously active in a meeting room scenario, and both the position of the sources and the identity of the time-overlapped sound classes have been estimated, the problem of assigning ...
    • The block Gauss-Seidel method in sound transmission problems 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2010-03)
      Article
      Open Access
      Sound transmission through partitions can be modeled as an acoustic fluid–elastic structure interaction problem. The block Gauss–Seidel iterative method is used in order to solve the finite element linear system of equations. ...
    • The finite layer method for modelling the sound transmission through double walls 

      Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2012-10)
      Article
      Open Access
      The finite layer method (FLM) is presented as a discretisation technique for the computation of noise transmission through double walls. It combines a finite element method (FEM) discretisation in the direction perpendicular ...