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Browsing Departament de Tecnologies de la Informació i les Comunicacions by Issue Date

Browsing Departament de Tecnologies de la Informació i les Comunicacions by Issue Date

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  • Resina, Eduard; Serra, Xavier (International Computer Music Conference, 1999)
    The Musicians' Software Mall is a software package developed to provide powerful composition and performance tools to the computer musician. At this stage it contains the following applications: SmsTools 2.0, a set of tools ...
  • Herrera Boyer, Perfecto, 1964-; Serra, Xavier; Peeters, Geoffroy (1999)
    Sound content description is one of the aims of the MPEG-7 initiative. Although MPEG-7 focuses on indexing and retrieval of audio, there are other sound content-based processing applications waiting to be developed once ...
  • Jordà Puig, Sergi (MIT Press, 1999)
    Collective creation and the production of open and continuously evolving works are, according to the author, two of the major and more appealing artistic breakthroughs the Internet can offer to composers and creators in ...
  • Herrera Boyer, Perfecto, 1964-; Serra, Xavier (Ajuntament de Lleida, 1999)
  • Cano, Pedro; Loscos, Àlex; Bonada, Jordi, 1973-; de Boer, Marteen; Serra, Xavier (International Computer Music Conference, 2000)
    In this paper we present a real-time system for morphing two voices in the context of a karaoke application. As the user sings a pre-established song, his pitch, timbre, vibrato and articulation can be modified to resemble ...
  • de Boer, Marteen; Bonada, Jordi, 1973-; Cano, Pedro; Loscos, Àlex; Serra, Xavier (International Computer Music Conference, 2000)
    This paper presents the implementation aspects of a real-time system for morphing two voices in the context of a karaoke application. It describes the software design and implementation under a PC platform and it discusses ...
  • Serra, Xavier (International Computer Music Conference, 2000)
    The Audiovisual Institute (http://www.iua.upf.es) is a research center of the Pompeu Fabra University, (http://www.upf.es) located in Barcelona and devoted to new media technologies. Apart from its main research activities, ...
  • de Boer, Marteen; Bonada, Jordi, 1973-; Serra, Xavier (International Computer Music Conference, 2000)
    Recently, we have seen an increased use and support of the Sound Description Interchange Format (SDIF), among which the integration of SDIF in widely used environments such as MAX/MSP (Wright, Dudas, Khoury, Wang, Zicarelli, ...
  • Wright, Matthew; Beauchamp, James; Fitz, Kelly; Rodet, Xavier; Röbel, Axel; Serra, Xavier; Wakefield, Gregory (Cambridge University Press, 2000)
    We compared six sound analysis/synthesis systems used for computer music. Each system analysed the same collection of twenty-seven varied input sounds, and output the results in Sound Description Interchange Format (SDIF). ...
  • Herrera Boyer, Perfecto, 1964-; Amatriain, Xavier; Batlle, Eloi; Serra, Xavier (International Society for Music Information Retrieval (ISMIR), 2000)
    A system capable of describing the musical content of any kind of sound file or sound stream, as it is supposed to be done in MPEG7-compliant applications, should provide an account of the different moments where a certain ...
  • Bonada, Jordi, 1973-; Loscos, Àlex; Cano, Pedro; Serra, Xavier; Kenmochi, Hideki (Audio Engineering Society, 2001)
    In this paper we present two different approaches to the modeling of the singing voice. Each of these approaches has been thought to fit in the specific requirements of two applications. These are an automatic voice impersonator ...
  • Farrús, Mireia; Cassan, Adán; Cervell, Sergi; Colom, Mireia; González, Ignacio; Marín, Rafael; Trotzig, David (Sociedad Española para el Procesamiento del Lenguaje Natural (SEPLN), 2001)
    Esta presentación muestra cómo funciona la Interfaz Descriptores, una aplicación que permite la sistematización de los descripores humanos en los artículos enciclopédicos del medio editorial
  • Bonet, Blai; Geffner, Héctor (Elsevier, 2001)
    In the AIPS98 Planning Contest, the hsp planner showed that heuristic search planners can be competitive with state-of-the-art Graphplan and sat planners. Heuristic search planners like hsp transform planning problems into ...
  • Bonada, Jordi, 1973-; Celma Herrada, Òscar; Loscos, Àlex; Ortolà, Jaume; Serra, Xavier; Yoshioka, Yasuo; Kayama, Hiraku; Hisaminato, Yuji; Kenmochi, Hideki (International Computer Music Conference, 2001)
    This paper presents an approach to the modeling of the singing voice with a particular emphasis on the naturalness of the resulting synthetic voice. The underlying analysis/synthesis technique is based on the Spectral ...
  • Parés, Narcís, 1966-; Parés, Roc, 1968- (MIT Press, 2001)
    Virtual reality application design is usually guided by a content-driven strategy, which gives priority to the application's content and context. In this paper, we shall describe and study a novel strategy in VR application ...
  • Andreu, Fuensanta; Ballester, Coloma; Caselles, Vicent; Mazón, Jose (Elsevier, 2001)
    We introduce a new concept of solution for the Dirichlet problem for the total variational flow named entropy solution. Using Kruzhkov's method of doubling variables both in space and in time we prove uniqueness and a ...
  • Amatriain, Xavier; Bonada, Jordi, 1973-; Loscos, Àlex; Serra, Xavier (2001)
    When designing audio effects for music processing, we are always aiming at providing higherlevel representations that may somehow fill in the gap between the signal processing world and the end-user. Spectral models in ...
  • Andreu, Fuensanta; Caselles, Vicente; Mazón, José (European Mathematical Society (EMS), 2002)
    We prove existence and uniqueness of solutions for the Dirichlet problem for quasilinear parabolic equations in divergent form for which the energy functional has linear growth. A typical example of energy functional we ...
  • Andreu, Fuensanta; Caselles, Vicente; Díaz, Jesus Ildefonso; Mazón, Jose (Elsevier, 2002)
    We prove the existence of a finite extinction time for the solutions of the Dirichlet problem for the total variation flow. For the Neumann problem, we prove that the solutions reach the average of its initial datum in ...
  • Bellettini, Giovanni; Caselles, Vicente; Novaga, Matteo (Elsevier, 2002)
    In this paper, we study the minimizing total variation flow ut=div(Du/∣Du∣) in N for initial data u0 in Lloc1(N), proving an existence and uniqueness result. Then we characterize all bounded sets Ω of finite perimeter in ...

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