Exploració per autor "Nadeu Camprubí, Climent"
Ara es mostren els items 83-102 de 140
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On building and evaluating a broadcast-news audio segmentation system
Butko, Taras; Nadeu Camprubí, Climent (2011)
Text en actes de congrés
Accés restringit per política de l'editorial -
On frequency averaging for spectral analysis in speech recognition
Nadeu Camprubí, Climent; Galindo, F; Padrell, J (Robert H. Mannel and Jordi Robert-Ribes, 1998)
Text en actes de congrés
Accés obertMany speech recognition systems use logarithmic filter-bank energies or a linear transformation of them to represent the speech signal. Usually, each of those energies is routinely computed as a weighted average of the ... -
On parameter filtering in continuous subword-unit-based speech recognition
Pachès Leal, Pau; Nadeu Camprubí, Climent (H. TIMOTHY BRUMMELL, WILLIAM IDSARDI CITATION DELAWARE, NEW CASTLE, DELAWARE, 1996)
Text en actes de congrés
Accés obertSimple IIR or FIR filters have been widely used in isolated or connected word recognition tasks to filter the time sequence of speech spectral parameters, since, despite their simplicity, they significantly improve recognition ... -
On the acoustic environment of a neonatal intensive care unit: initial description, and detection of equipment alarms
Raboshchuk, Ganna; Nadeu Camprubí, Climent; Ghahabi Esfahani, Omid; Solvez, Sergi; Muñoz Mahamud, Blanca; Riverola de Veciana, Ana; Navarro Hervas, Santiago (International Speech Communication Association (ISCA), 2014)
Comunicació de congrés
Accés restringit per política de l'editorialThe acoustic environment of a typical neonatal intensive care unit (NICU) is very rich and may contain a large number of different sounds, which come either from the equipment or from the human activities taking place in ... -
On the AR modelling of the one-sided autocorrelation sequence for noisy speech recognition
Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent (University of Alberta, 1992)
Text en actes de congrés
Accés obertSpeech recognition in noisy environments remains an unsolved problem even in the case of isolated word recognition with small vocabularies. Recently, several techniques have been proposed to alleviate this problem. Concretely, ... -
On the cramer-rao bound of finite-length cepstrum spectral estimators
Nadeu Camprubí, Climent; Lleida Solano, Eduardo (Institution of Electrical Engineers, 1990-07)
Article
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On the decorrelation of filter-bank energies in speech recognition
Nadeu Camprubí, Climent; Hernando Pericás, Francisco Javier; Gorricho Moreno, Monica (1995)
Text en actes de congrés
Accés obertCepstral coefficients are widely used in speech recognition. In this paper, we claim that they are not the best way of representing the spectral envelope, at least for some usual speech recognition systems. In fact, cepstrum ... -
On the interaction between time and frequency filtering of speech parameters
Macho Ciena, Dusan; Nadeu Camprubí, Climent (Robert H. Mannel and Jordi Robert-Ribes, 1998)
Text en actes de congrés
Accés obertOne of the great today's challenges in speech recognition is to ensure the robustness of the used speech representation. Usually, the recognition rate is strongly reduced when the speech is corrupted, e.g. by convolutional ... -
On the potential of channel selection for recognition of reverberated speech with multiple microphones
Wolf, Martin; Nadeu Camprubí, Climent (2010)
Text en actes de congrés
Accés obertThe performance of ASR systems in a room environment with distant microphones is strongly affected by reverberation. As the degree of signal distortion varies among acoustic channels (i.e. microphones), the recognition ... -
Optimization algorithms for estimating modulation spectrum domain filters
Pachès Leal, Pau; Rose, R; Nadeu Camprubí, Climent (G. Olaszy, G. Németh, K. Erdohegyi, 1999)
Text en actes de congrés
Accés obertThe goal of the work described in this paper is to develop and evaluate procedures for automatic estimation of modulation spectrum filters to compensate for distortions in the modulation spectrum domain. The modulation ... -
Pitch determination using the cepstrum of the one-sided autocorrelation sequence
Nadeu Camprubí, Climent; Pascual Gilabert, Jordi; Hernando Pericás, Francisco Javier (1991)
Text en actes de congrés
Accés obertA novel cepstral function, the cepstrum (CEP) of the one-sided autocorrelation sequence (COSA), is presented and applied to pitch determination of speech signals. This pitch determination algorithm (PDA) starts from the ... -
Pre-processing techniques for improved detection of vocalization sounds in a neonatal intensive care unit
Raboshchuk, Ganna; Nadeu Camprubí, Climent; Vidiella Pinto, Sergio; Ros Fornells, Oriol; Muñoz Mahamud, Blanca; Riverola de Veciana, Ana (2018-01-01)
Article
Accés obertThe sounds occurring in the noisy acoustical environment of a Neonatal Intensive Care Unit (NICU) are thought to affect the growth and neurodevelopment of preterm infants. Automatic sound detection in a NICU is a novel and ... -
Predicción lineal de la parte causal de la autocorrelación para la identificación del locutor en ambientes ruidosos
Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent; Salavedra Molí, Josep (Universidad de las Palmas de Gran Canaria, 1994)
Comunicació de congrés
Accés obert -
Predicción lineal de la parte causal de la autocorrelación para la identificación del locutor en ambientes ruidosos
Villagrasa, C; Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent; Salavedra Molí, Josep (1994)
Text en actes de congrés
Accés obertRecently, a new parametrization technique based on the AR modelling of the one-sided autocorrelation sequence (OSALPC) has shown to be attractive for speech recognition because of its simplicity and its high recognition ... -
Presentació Ètica al Grau de Ciència i enginyeria de Dades
Vidal López, Eva María; Domingo Pascual, Jordi; Nadeu Camprubí, Climent (Universitat Politècnica de Catalunya, 2023-02-13)
Apunts
Accés obert -
Principal and discriminant component analysis for feature selection in isolated word recognition
Lleida Solano, Eduardo; Nadeu Camprubí, Climent (1990)
Text en actes de congrés
Accés obert -
Procesador acustico de palabras basado en la tecnica de "word spotting" para el reconocimiento del habla continua
Lleida Solano, Eduardo; Nadeu Camprubí, Climent; Mariño Acebal, José Bernardo (1991)
Text en actes de congrés
Accés obertThis paper describes the acoustic processor of a Spanish Continuous Speech Recognition System based on HMM Demisyllable units. The acoustic processor produces a lattice of word hypotheses suitable to be parsed by a linguistic ... -
Processament del senyal - Col.lecció de Problemes
Hernando Pericás, Francisco Javier; Lagunas Hernandez, Miguel A.; Marqués Acosta, Fernando; Mariño Acebal, José Bernardo; Monte Moreno, Enrique; Nadeu Camprubí, Climent; Oliveras Vergés, Albert; Rodríguez Fonollosa, Javier; Torres Urgell, Lluís; Vázquez Grau, Gregorio; Vidal Manzano, José (Universitat Politècnica de Catalunya, 2003)
Problema, exercici
Accés obert -
Qüestions ètiques entorn de la ciència i la tecnologia
Nadeu Camprubí, Climent (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1995)
Article
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Ramses: a Spanish demisyllable based continuous speech recognition system
Mariño Acebal, José Bernardo; Nadeu Camprubí, Climent; Lleida Solano, Eduardo; Monte Moreno, Enrique; Moreno Bilbao, M. Asunción (Springer, 1990)
Text en actes de congrés
Accés obertA continuous speech recognition system (called RAMSES) has been built based on the demisyllable as phonetic unit and tools from connected speech recognition. Speech is parameterized by band-pass lifted LPC-cepstra and ...