Browsing by Author "Hernando, Javier"

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  • Luque, Jordi; Morros, R.; Garde, I.; Anguita, Jan; Farrús, Mireia; Macho, D.; Marqués López, Fernando; Martínez, C.; Vilaplana, V.; Hernando, Javier (Springer, 2007)
    In this paper, we address the modality integration issue on the example of a smart room environment aiming at enabling person identification by combining speech and 2D face images. First we introduce the monomodal audio ...
  • Farrús, Mireia; Wagner, Michael; Erro, Daniel; Hernando, Javier (Equinox Publishing, 2010)
    Voices can be deliberately disguised by means of human imitation or voice conversion. The question arises as to what extent they can be modified by using either of both methods. In the current paper, a set of speaker ...
  • Farrús, Mireia; Anguita, Jan; Hernando, Javier; Cerdà, Ramon (Dirección Xeral de Creación e Difusión Cultural, 2007)
    Los sistemas automáticos de reconocimiento de locutor más utilizados recientemente están basados en características acústicas de bajo nivel, como las magnitudes espectrales, las frecuencias de los formantes, etc. Sin ...
  • Farrús, Mireia; Ejarque, Pascual; Temko, Andrey; Hernando, Javier (Springer, 2007)
    It has been shown that prosody helps to improve voice spectrum based speaker recognition systems. Therefore, prosodic features can also be used in multimodal person verification in order to achieve better results. In this ...
  • Farrús, Mireia; Wagner, Michael; Anguita, Jan; Hernando, Javier (International Speech Communication Association (ISCA), 2008)
    Voice imitation is one of the potential threats to security systems that use automatic speaker recognition. Since prosodic features have been considered for state-of-the-art recognition systems in recent years, the question ...
  • Farrús, Mireia (International Speech Communication Association (ISCA), 2007)
    Jitter and shimmer are measures of the cycle-to-cycle variations of fundamental frequency and amplitude, respectively, which have been largely used for the description of pathological voice quality. Since they characterise ...
  • Farrús, Mireia; Luque, Jordi; Morros, R.; Anguita, Jan; Macho, D.; Marqués, Marta; Martínez, C.; Vilaplana, V.; Hernando, Javier (Universidad de Zaragoza, 2006)
    In this paper we present a person identification system based on a combination of acoustic features and 2D face images. We address the modality integration issue on the example of a smart room environment. In order to ...
  • Farrús, Mireia; Garde, Ainara; Ejarque, Pascual; Luque, Jordi; Hernando, Javier (International Speech Communication Association (ISCA), 2006)
    Comunicació presentada a: 9th International Conference on Spoken Language Processing; 17-21 de setembre de 2006 a Pittsburgh, Estats Units d'Amèrica
  • Hernando, Javier; Farrús, Mireia; Ejarque, Pascual; Garde, Ainara; Luque, Jordi; Comunicació presentada a: SECRYPT 2006, International Conference on Security and Cryptography, celebrada a Setúbal, Portugal, del 7 al 10 d'agost de 2006 (INSTICC Press, 2006)
    Prosodic information can be used successfully for automatic speaker recognition, although most of the speaker recognition systems use only short-term spectral features as voice information. In this work, prosody information ...
  • Cerdà, Ramon; Farrús, Mireia; Hernando, Javier; Veyrat Rigat, Montserrat (Dirección Xeral de Creación e Difusión Cultural, 2007)
    La presente comunicación no ofrece todavía resultados de ningún experimento ya ejecutado, sino, com su título indica, una serie de comentarios en torno a la noción de "campo de dispersión fonemática" (o "fonológica") o ...
  • Farrús, Mireia; Wagner, Michael; Anguita, Jan; Hernando, Javier (International Speech Communication Association (ISCA), 2008)
    Prosody plays an important role in the human recognition process; therefore, prosodic elements are normally used by impersonators aiming to resemble someone else. Since such voice imitation is one of the potential threats ...
  • Anguera Miró, Xavier, 1978-; Farrús, Mireia; Hernando, Javier (2004)
    L'evolució de la societat de la informació ha esdevingut un incessant increment de continguts audiovisuals que s’emeten constantment en cadenes de televisió i emissores de radio locals i nacionals en llengua catalana. ...
  • Farrús, Mireia; Anguita, Jan; Anguera Miró, Xavier, 1978-; Crego, Josep Maria; de Gispert, A.; Hernando, Javier; Nadeu Camprubí, Climent (2004)
    La visió actual de la societat de la informació gira fonamentalment al voltant de la llengua escrita. No obstant, és evident que la forma més natural i espontània de comunicació entre els éssers humans és la parla, i no ...
  • Farrús, Mireia; Erro, Daniel; Hernando, Javier (Universidad de Valladolid, 2008)
    Security systems relying on voice identification can be threatened by human voice imitation or synthetic voices. As voice conversion can be seen as a sort of voice imitation, this paper analyses the performance of an ...
  • Farrús, Mireia; Hernando, Javier (Institution of Engineering and Technology (IET), 2009)
    Jitter and shimmer are measures of the fundamental frequency and amplitude cycle-to-cycle variations, respectively. Both features have been largely used for the description of pathological voices, and since they characterise ...