Now showing items 21-40 of 122

  • 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 ...
  • Contextual confidence measures for continuous speech recognition 

    Hernández-Abrego, G; Mariño Acebal, José Bernardo (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Conference report
    Open Access
    This paper explores the repercussion of contextual information into confidence measuring for continuous speech recognition results. Our approach comprises three steps: to extract confidence predictors out of recognition ...
  • 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 ...
  • Designing the quantizing step for a digital generalized sign test detector applied to Radar a first approach 

    Figueiras Vidal, Aníbal R.; García Gómez, Ramón; Mariño Acebal, José Bernardo; Lagunas Hernandez, Miguel A.; Martín Funke, Enrique (Institute of Electrical and Electronics Engineers (IEEE), 1981)
    Conference report
    Open Access
  • 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 ...
  • Detección no paramétrica en radar 

    Mariño Acebal, José Bernardo; Figueiras Vidal, Aníbal R. (1980-10)
    Article
    Restricted access - publisher's policy
  • Direct determination of a low-pass components of a band-pass signal from samples of it and delayed versions of it 

    Figueiras Vidal, Aníbal R.; García Gómez, Ramón; Lagunas Hernandez, Miguel A.; Mariño Acebal, José Bernardo; Casar Corredera, José Ramón (Institute of Electrical and Electronics Engineers (IEEE), 1981)
    Conference report
    Open Access
  • Diseño de medidas de calidad para codificadores de voz 

    Roser, Miquel; Mariño Acebal, José Bernardo (Consejo Superior de Investigaciones Científicas (CSIC), 1986)
    Conference report
    Open Access
    In this paper the voice quality of several 32-9.6 Kbit/s coders is assesed by a subjective test and by objective measures. A subjective test called Degradation Pairs Test (TDP) has been designed and the performance of ...
  • Examen Final 

    Hernando, J.; Mariño Acebal, José Bernardo; Oliveras Vergés, Albert; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2015-06-16)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Oliveras Vergés, Albert; Mariño Acebal, José Bernardo; Hernando Pericás, Francisco Javier; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2014-06-10)
    Exam
    Restricted access to the UPC academic community
  • Examen Final 

    Bellot Pujalte, Pau; Bosio, Mattia; Hernando, J.; Casas Pla, Josep Ramon; Salembier Clairon, Philippe Jean; Monte Moreno, Enrique; Mariño Acebal, José Bernardo (Universitat Politècnica de Catalunya, 2013-06-25)
    Exam
    Restricted access to the UPC academic community
  • Feature selection through orthogonal expansion in isolated word recognition 

    Lleida Solano, Eduardo; Mariño Acebal, José Bernardo (1989)
    Conference report
    Open Access
    The use of an orthogonal expansion for feature selection and data compression in isolated word recognition is presented. Assuming that the spectral evolution, given by a LPC analysis, is a noisy measure in the sense that ...
  • Filtros en el dominio de la frecuencia 

    Mariño Acebal, José Bernardo; Masgrau Gómez, Enrique José; Nadeu Camprubí, Climent; Serra, Miquel; Carol Vilanova, Antonio (1985)
    Book
    Open Access
  • Finite State Grammar inference for connected word recognition 

    Mariño Acebal, José Bernardo; Nadeu Camprubí, Climent; Lleida Solano, Eduardo (1988)
    Conference report
    Open Access
    An algorithm that infers a finite state grammar from a language specified by simple erumeration of legal phrases , is introduced. The algorithm processes every phrase as a string of phonetic units (words, syllables, ...
  • Formació Integral dels tècnics i continguts sociohumanístics 

    Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1997)
    Article
    Open Access
  • Frame reduction in LPC isolated word recognition 

    Nadeu Camprubí, Climent; Lleida Solano, Eduardo; Mariño Acebal, José Bernardo (1986)
    Conference report
    Open Access
    It is well know that the pattern matching approach to word-based recognition yields good results when the time aligriment is carried out by means of dynamic programming. However, the high computational expenditure needed ...
  • Frequency and time filtering of filter-bank energies for HMM speech recognition 

    Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo; Hernando Pericás, Francisco Javier; Nogueiras Rodríguez, Albino (H. TIMOTHY BRUMMELL, WILLIAM IDSARDI CITATION DELAWARE, NEW CASTLE, DELAWARE, 1996)
    Conference lecture
    Restricted access - publisher's policy
    In speech recognition, a discriminative frequency weighting can be achieved by decorrelating the frequency sequence of log mel-scaled filter-bank energies with a computationally inexpensive filter. We show how the spectral ...
  • Further results in designing digital interpolators 

    Mariño Acebal, José Bernardo; Figueiras Vidal, Aníbal R.; Lagunas Hernandez, Miguel A.; García Gómez, Ramón (1981)
    Conference report
    Open Access
    One of the two approaches to the design of digital interpolators uses averaged second-order statistics to minimize the mean square interpolation error. This approach has been considered only when the number of samples ...