Academic position:
Full Professor
Joining date:
10-04-1992
Role in IT: Senior Researcher Scientific Area: Networks and Multimedia
Group: Multimedia Signal Processing – Co
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Automatic speech and speaker segmentation and labelling, PhD, Arlindo Oliveira da Veiga , 9-2013
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Switching Audio Amplifiers, PhD, Carlos Ferreira , 2-2013
Publications
Papers in Journals [3]
- Silva, V.; Sá, L. V.; "General method for perfect reconstruction subband processing of finite length signals using linear extensions", IEEE Trans. on Signal Processing, Vol. 47, No. 9, pp. 2572 - 2575, September, 1999.
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- Silva, V.; Sá, L. V.; "Analytical optimization of CQF filter banks", IEEE Trans. on Signal Processing, Vol. 44, No. 6, pp. 1564 - 1568, June, 1996.
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- Veiga, A.; Perdigão, F.; Sá, L. V.; "Using Phoneme Acoustic Models for Fast Word Spotting", Proc Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. 77 - 78, October, 2012.
Abstract
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- Perdigão, F.; C. Neves; Sá, L. V.; "PATHOLOGICAL VOICE DETECTION USING TURBULENT SPEECH SEGMENTS ", Proc INSTICC International Conf. on Bio-inspired Systems and Signal Processing - Biosignals, Vilamoura, Portugal, Vol. -, pp. - - -, February, 2012.
Abstract
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- Veiga, A.; Candeias, S.; Sá, L. V.; Perdigão, F.; "Using Coarticulation Rules in Automatic Phonetic Transcription", Proc International Conf. on Computational Processing of Portuguese - PROPOR, Porto Alegre, Brazil, Vol. ---, pp. --- - ---, April, 2010.
Abstract
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- Ferreira, C. A. F.; Borges, B.; Sá, L. V.; "Design of One Cycle Control for Low Distortion Bipolar Switching Inverters", Proc IEEE Industrial Electronics Conf. - IECON, Porto, Portugal, Vol. -, pp. - - -, November, 2009. Abstract | Full text (PDF 414KB) | BibTex
- Ferreira, C. A. F.; Borges, B.; Sá, L. V.; "Output Filter Solutions for Class D Power Amplifiers: Analysis, Characterization and Recent Developments", Proc AES 37th Conf. Class D Audio Amplification, Hillerød, Denmark, Vol. -, pp. - - -, August, 2009. Abstract | Full text (PDF 220KB) | BibTex
- C. Neves; Veiga, A.; Sá, L. V.; Perdigão, F.; "Audio Fingerprinting System for Broadcast Streams", Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. 481 - 484, May, 2009.
Abstract
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- Ferreira, C. A. F.; Borges, B.; Sá, L. V.; "One Cycle Control Design for High Performance Two-Level Power Inverters", Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. -, pp. - - -, May, 2009. Abstract | Full text (PDF 174KB) | BibTex
- Veiga, A.; C. Neves; Perdigão, F.; Sá, L. V.; "Out-Of-Vocabulary and Confidence Measures for Speech Recognition Using Phone Models", Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. 457 - 460, May, 2009. Abstract | Full text (PDF 55KB) | BibTex
- Ferreira, C. A. F.; Borges, B.; Sá, L. V.; "Filtragem de Saída em Amplificadores Áudio de Classe D", Proc AES Encontro de Engenharia de Áudio da AES Portugal, Lisboa, Portugal, Vol. -, pp. - - -, December, 2008.
Full text (PDF 702KB) | BibTex
- J. Lopes; C. Neves; Veiga, A.; A. M. Maciel; Lopes, C.; Sá, L. V.; Perdigão, F.; "Training A Robust Command Recognizer with the Tecnovoz Database", Proc Jornadas en Tecnología del Habla - JTH, Bilbao, Spain, Vol. -, pp. - - -, November, 2008.
Abstract
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- C. Neves; Veiga, A.; J. Lopes; A. M. Maciel; Lopes, C.; Perdigão, F.; Sá, L. V.; "A Robust Speech Command Recognizer for European Portuguese", Proc Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. -, pp. - - -, October, 2008.
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- C. Neves; Veiga, A.; Sá, L. V.; Perdigão, F.; "Efficient Noise-Robust Speech Recognition Front-End Based on the ETSI Standard", Proc International Conf. on Signal Processing - ICSP, Beijing, China, Vol. -, pp. - - -, October, 2008.
Abstract
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- J. Lopes; C. Neves; Veiga, A.; A. M. Maciel; Lopes, C.; Perdigão, F.; Sá, L. V.; "Development of a Speech Recognizer with the Tecnovoz Database", Proc International Conf. on Computational Processing of Portuguese - PROPOR, Aveiro, Portugal, Vol. , pp. 260 - 263, September, 2008.
Abstract
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- A. M. Maciel; Veiga, A.; C. Neves; Lopes; Lopes, C.; Perdigão, F.; Sá, L. V.; "A Robust Speech Command Recognizer For Embedded Applications", Proc International Conf. on Signal Processing and Multimedia Applications, Porto, Portugal, Vol. , pp. 92 - 95, July, 2008.
Abstract
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- Monteiro, P.P. ; Sá, L. V.; Júdice, J. J.; "Direct Time-Domain Filter Synthesis: a procedure for finding global optima in first order systems ", Proc Portuguese Conf. on Pattern Recognition - RecPad, Porto, Portugal, Vol. none, pp. 381 - 385, May, 2000.
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- Monteiro, P.P. ; Sá, L. V.; "A New Metod to Evaluatein Closed-Form the Response of Stable Continuous-time ARMA Systems to a Periodic Input Avoiding Fourier Series", Proc Portuguese Conf. on Pattern Recognition - RecPad, Coimbra, Portugal, Vol. none, pp. 269 - 274, March, 1997.
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Other Scientific Achievements
Miscellaneous
- Sá, L. V.; "Technical Audit", Concurso de Bolsas de Investigação da FCT", , 01-05-2006.
Other Contributions
Conference Committees
- Conf. on Telecommunications - ConfTele, Technical Programme Chairman, Luis António Serralva Vieira de Sá , 2007.
- European Conf. on Speech Communication and Technology, Organizing Committee, Luis António Serralva Vieira de Sá , 2005.