Email: ortega@unizar.es
Address: Ada Byron Building, María de Luna 1, 50018, Zaragoza, Spain
Senior Lecturer & Research fellow
ViVoLab, Aragón Institute for Engineering Research (I3A)
University of Zaragoza, Spain
ABOUT ME
Alfonso Ortega is member of the Aragón Institute for Engineering Research in the School of Engineering and Architecture at the University of Zaragoza, Zaragoza (Spain). He was born in Teruel, Spain and received the Telecommunication Engineering and the Ph. D. degrees from the University of Zaragoza in 2000 and 2005, respectively.
His Ph. D. Thesis, advised by Dr. Eduardo Lleida, received the PhD Extraordinary Award and the Telefónica Chair Award to the best technological Ph. D. In 2006 he was visiting scholar in the Center for Robust Speech Systems (CRSS) of the University of Texas at Dallas, UTD, (USA). He has participated in more than 25 research projects funded by national or international public institutions and more than 15 research projects for private companies. He is author of more than 50 papers published in international journals or conference proceedings and several international patents.
He is presently Associate Professor in the Department of Electronic Engineering and Communications at the University of Zaragoza. His research interests span the areas of digital speech processing, speech enhancement, analysis and modeling of speech and speaker traits, automatic speaker verification, and robust automatic speech recognition. research team in speech recognition and signal processing.
PUBLICATIONS
2008
Miguel, Antonio; Lleida, Eduardo; Rose, Richard; Buera, Luis; Saz, Oscar; Ortega, Alfonso
Capturing local variability for speaker normalization in speech recognition Artículo de revista
En: IEEE Transactions on Audio, Speech and Language Processing, vol. 16, no 3, pp. 578-593, 2008.
@article{Miguel2008,
title = {Capturing local variability for speaker normalization in speech recognition},
author = {Antonio Miguel and Eduardo Lleida and Richard Rose and Luis Buera and Oscar Saz and Alfonso Ortega},
doi = {10.1109/TASL.2007.914114},
year = {2008},
date = {2008-01-01},
journal = {IEEE Transactions on Audio, Speech and Language Processing},
volume = {16},
number = {3},
pages = {578-593},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Buera, Luis; Miguel, Antonio; Saz, Óscar; Ortega, Alfonso; Lleida, Eduardo
Feature vector normalization with combined standard and throat microphones for robust ASR Conferencia
Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH), vol. 2008-September, 2008.
@conference{Buera2008,
title = {Feature vector normalization with combined standard and throat microphones for robust ASR},
author = {Luis Buera and Antonio Miguel and Óscar Saz and Alfonso Ortega and Eduardo Lleida},
url = {https://www.isca-speech.org/archive/interspeech_2008/i08_1289.html},
year = {2008},
date = {2008-01-01},
booktitle = {Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH)},
volume = {2008-September},
pages = {1289-1292},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
2007
Ortega, Alfonso; Lleida, Eduardo; Masgrau, Enrique; Buera, Luis; Miguel, Antonio
Acoustic echo reduction in a two channel speech reinforcement system for vehicles Capítulo de libro
En: Advances for In-Vehicle and Mobile Systems: Challenges for International Standards, pp. 177-188, 2007.
@inbook{Ortega2007,
title = {Acoustic echo reduction in a two channel speech reinforcement system for vehicles},
author = {Alfonso Ortega and Eduardo Lleida and Enrique Masgrau and Luis Buera and Antonio Miguel},
doi = {10.1007/978-0-387-45976-9_15},
year = {2007},
date = {2007-01-01},
booktitle = {Advances for In-Vehicle and Mobile Systems: Challenges for International Standards},
pages = {177-188},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}
Buera, Luis; Lleida, Eduardo; Miguel, Antonio; Ortega, Alfonso; Saz, Óscar
Cepstral vector normalization based on stereo data for robust speech recognition Artículo de revista
En: IEEE Transactions on Audio, Speech and Language Processing, vol. 15, no 3, pp. 1098-1113, 2007.
@article{Buera2007,
title = {Cepstral vector normalization based on stereo data for robust speech recognition},
author = {Luis Buera and Eduardo Lleida and Antonio Miguel and Alfonso Ortega and Óscar Saz},
doi = {10.1109/TASL.2006.885244},
year = {2007},
date = {2007-01-01},
journal = {IEEE Transactions on Audio, Speech and Language Processing},
volume = {15},
number = {3},
pages = {1098-1113},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Buera, Luis; Miguel, Antonio; Saz, Oscar; Lleida, Eduardo; Ortega, Alfonso
Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH), vol. 2007-August, 2007.
@conference{Buera2007evaluation,
title = {Evaluation of the combined use of MEMLIN and MLLR on the non-native adaptation task of hiwire project database},
author = {Luis Buera and Antonio Miguel and Oscar Saz and Eduardo Lleida and Alfonso Ortega},
url = {https://www.isca-speech.org/archive/interspeech_2007/i07_2437.html},
year = {2007},
date = {2007-01-01},
booktitle = {Proceedings of the Annual Conference of the International Speech Communication Association (INTERSPEECH)},
volume = {2007-August},
pages = {1969-1972},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}