Now showing items 21-40 of 134

  • Audiovisual event detection towards scene understanding 

    Canton Ferrer, Cristian; Butko, Taras; Segura, C.; Giró Nieto, Xavier; Nadeu Camprubí, Climent; Hernando Pericás, Francisco Javier; Casas Pla, Josep Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Restricted access - publisher's policy
    Acoustic events produced in meeting environments may contain useful information for perceptually aware interfaces and multimodal behavior analysis. In this paper, a system to detect and recognize these events from a ...
  • A Unified Parameterization Scheme for Noisy Speech Recognition 

    Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent (ESCA, 1997)
    Conference report
    Open Access
    LP-based and mel-cepstrum coefficients are by far the most prevalent parameterization techniques in speech recognition. The conventional LP technique is known to be very sensitive to the presence of additive noise and there ...
  • Automatic detection of alarm sounds in a noisy hospital environment using model and non-model based approaches 

    Raboshchuk, Ganna; Gómez Quintana, Sergi; Peiró Lilja, Alexandre; Nadeu Camprubí, Climent (2017-11-12)
    External research report
    Open Access
    In the noisy acoustic environment of a Neonatal Intensive Care Unit (NICU) there is a variety of alarms, which are frequently triggered by the biomedical equipment. In this paper different approaches for automatic detection ...
  • Automatic detection of equipment alarms in a neonatal intensive care unit environment: a knowledge-based approach 

    Raboshchuk, Ganna; Jancovic, Peter; Nadeu Camprubí, Climent; Peiró Lilja, Alexandre Cristian; Kokuer, Munevver; Muñoz Mahamud, Blanca; Riverola de Veciana, Ana (International Speech Communication Association (ISCA), 2015)
    Conference report
    Restricted access - publisher's policy
    Alarm sounds triggered by biomedical equipment play a key role in providing healthcare in a neonatal intensive care unit (NICU). This paper presents our work on automatic detection of acoustic alarms in a noisy NICU ...
  • CDHMM speaker recognition by means of frequency filtering of filter-bank energies 

    Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent (1997)
    Conference report
    Open Access
    Recently, the set of spectral parameters of every speech frame that result from filtering the frequency sequence of mel-scaled filter-bank energies with a simple first-order high-pass FIR filter have proved to be an efficient ...
  • Channel selection measures for multi-microphone speech recognition 

    Nadeu Camprubí, Climent; Wolf, Martin (2014-02-01)
    Article
    Restricted access - publisher's policy
    Automatic speech recognition in a room with distant microphones is strongly affected by noise and reverberation. In scenarios where the speech signal is captured by several arbitrarily located microphones the degree of ...
  • Channel selection using N-best hypothesis for multi-microphone ASR 

    Wolf, Martin; Nadeu Camprubí, Climent (2013)
    Conference report
    Restricted access - publisher's policy
    If speech is captured by several arbitrarily-located microphones in a room, the degree of distortion by noise and reverberation may vary strongly from one channel to another. Channel selection for automatic speech recognition ...
  • Classification of acoustic events using SVM-based clustering schemes 

    Temko, Andrey A.; Nadeu Camprubí, Climent (2006)
    Article
    Open Access
    Acoustic events produced in controlled environments may carry information useful for perceptually aware interfaces. In this paper we focus on the problem of classifying 16 types of meeting-room acoustic events. First of ...
  • Comparison of time & frequency filtering and cepstral-time matrix approaches in ASR 

    Macho, D; Nadeu Camprubí, Climent; Jancovic, P; Rozinaj, G; Hernando Pericás, Francisco Javier (1999)
    Conference report
    Open Access
    In current speech recognition systems, speech is represented by a 2-D sequence of parameters that model the temporal evolution of the spectral envelope of speech. Linear transformation or filtering along both time and ...
  • Comportamiento de la transformación bilineal de frecuencias en reconocimiento de habla ruidosa 

    Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent (1992)
    Conference report
    Open Access
  • Comportamiento de la transformacion bilineal de frecuencias en reconocimiento de habla ruidosa 

    Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent; Riu, D. (. AERFAI, 1992)
    Conference report
    Open Access
  • Comunicación oral con el computador 

    Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo (1985-03)
    Article
    Restricted access - publisher's policy
    Concepts and techniques involved in speech communication with computers are reviewed. Although the speech output is, at present, closer to the computer ability than the speech understanding, at the moment only partial ...
  • Creació de recursos en línea per a l’autoaprenentage, foment de l’esperit crític i emprenedor i formació d’un comité d’avaluació externa en el màster MERIT 

    Pradell i Cara, Lluís; Cabrera-Bean, Margarita; Canal Bienzobas, Fernando; Cardama Aznar, Ángel; Gasull Llampallas, Antoni; González Arbesú, José María; Giró Nieto, Xavier; Heldring, Alexander; Herranz Luis, Jaime; Jofre Roca, Lluís; Mallorquí Franquet, Jordi Joan; Nadeu Camprubí, Climent; Olmos Bonafé, Juan José; Romeu Robert, Jordi; Rius Casals, Juan Manuel; Torres Torres, Francisco; Úbeda Farré, Eduard; Coderch Collell, Marcel; Kerans, Mary Ellen; Ros Giralt, Jordi; García, Antonio; González Font, Blanca; Guardiola Garcia, Marta; Hernández, Antoni; Melgarejo, Natali; Mestres, Albert (2009-02-12T10:25:51Z)
    Conference lecture / Conference report
    Open Access
    El projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ...
  • Demisyllable-based HMM spotting for continuous speech recognition 

    Lleida Solano, Eduardo; Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo; Salavedra Molí, Josep (Institute of Electrical and Electronics Engineers (IEEE), 1991)
    Conference report
    Open Access
    The authors describe the acoustic processor of a Spanish continuous speech recognition system based on demisyllable units. The acoustic processor is based on a spotting algorithm which takes as input the unknown utterance, ...
  • Demisyllable based Spanish Number Recognition Experiments 

    Mariño Acebal, José Bernardo; Nadeu Camprubí, Climent; Lleida Solano, Eduardo (1987)
    Conference report
    Open Access
    The main features of our demisyllable based continuous speech recognition system (RAMSES) are showed. Special attention is paid to demisyllable definition and the syntactic constraints used with the dynamic programming ...
  • Desarrollo de corpus para investigacion en tecnologias del habla 

    Casacuberta, F; Garcia, R; Llisterri, J; Nadeu Camprubí, Climent; Pardo, J M; Rubio, A. (1992-07)
    Article
    Open Access
  • Design of a phonetic corpus for speech recognition in catalan 

    Esquerra Llucià, Ignasi; Nadeu Camprubí, Climent; Villarrubia, L; León, P (LREC, 1998)
    Conference report
    Open Access
    In this paper, we present the design of a corpus for speech recognition to be used for the recording of a speech database in Catalan. A previous database in Spanish was the reference in setting the specifications about ...
  • Design of bandstop filters by reactance transformation 

    Mariño Acebal, José Bernardo; Nadeu Camprubí, Climent; Masgrau Gómez, Enrique José (Institution of Electrical Engineers, 1980-01-31)
    Article
    Open Access
  • Design of digital equalizers with minimax error 

    Mariño Acebal, José Bernardo; Masgrau Gómez, Enrique José; Nadeu Camprubí, Climent (1980)
    Conference report
    Open Access
    A new method for designing digital equalizers with simultaneous specification of magnitude and phase is introduced. The approximation is carried out using minimax error criteria. The method is eficient in iterations number ...
  • Desplegament de recursos en línea per a l’avaluació i l’autoaprenentage dels alumnes, i foment de l’especialització i competències transversals en el màster MERIT 

    Pradell i Cara, Lluís; Cardama Aznar, Ángel; Canal Bienzobas, Fernando; Jofre Roca, Lluís; Junyent Giralt, Gabriel; Herranz Luis, Jaime; Mallorquí Franquet, Jordi J.; Nadeu Camprubí, Climent; Pagès Zamora, Alba Maria; Pradell i Cara, Lluís; Rius Casals, Juan Manuel; Rodríguez Fonollosa, Javier; Romeu Robert, Jordi; Coderch Collell, Marcel; Kerans, Mary Ellen; Law, Carolyn; García Hernández, Antonio; Gutiérrez Martos, David; Hernández Bonet, Antoni; Ferrer Bosch, Anna; Pérez Trufero, Javier; Torre Lara, Jordi de la; Torres Matabosch, Núria (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
    Conference lecture / Conference report
    Open Access
    El projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ...