Researcher
  • Phone: +39 0461314564
  • FBK Povo
Short bio

Piergiorgio Svaizer received his degree in Electronic Engineering from the University of Padova in 1989. In 1991 he joined ITC-IRST (now FBK-IRST) where he has been working in the Speech Recognition Group and then in the SHINE research unit. His current research interests include digital signal processing, microphone arrays, automatic speech recognition in noisy and reverberant environments.

Research interests
digital signal processing Microphone arrays Acoustic Scene Analysis Automatic speech recognition in noisy and reverberant environments
Publications
  1. Bianca Angelini; Fabio Brugnara; Marcello Federico; Diego Giuliani; Roberto Gretter; Maurizio Omologo; Piergiorgio Svaizer,
    A Hands Free Dictation System for the Italian Language,
    Proceedings of IEEE Workshop on Automatic Speech Recognition,
    1995
    , pp. 117-
    118
  2. Bianca Angelini; Fabio Brugnara; D. Falavigna; Marcello Federico; Diego Giuliani; Roberto Gretter; Maurizio Omologo; Piergiorgio Svaizer,
    Attivita' del progetto 'Sistemi per il riconoscimento del parlato',
    1995
  3. Maurizio Omologo; Piergiorgio Svaizer,
    Acoustic Event Localization Using a Crosspower-Spectrum Phase Based Technique,
    Proceedings of the 1994 IEEE International Conference on Acoustics, Speech and Signal Processing [ICASSP-94], Speech Processing 2, Audio, Underwater Acoustics, VLSI & Neural Networks [S2AUVN],
    1994
  4. D. Giuliani; M. Omologo; P. Svaizer,
    Talker Localization and Speech Recognition using a Microphone Array and a Cross-PowerSpectrum Phase Analysis,
    Proceedings of ICSLP,
    1994
    , (International Conference on Spoken Language Processing (ICSLP),
    Yokohama, Japan,
    18/09/1994 - 22/09/1994)
  5. Diego Giuliani; Maurizio Omologo; Piergiorgio Svaizer,
    Talker Localization and Speech Recognition Using a Microphone Array and a Cross-PowerSpectrum Phase Analysis,
    1994
  6. M. FERRETTINO; M. PEROTTI; M. PERI; C. REGAZZONI; A. BOZZOLI; M. OMOLOGO; P. SVAIZER; D. BASILI,
    Interpretazione di immagini e segnali multisensore per la sorveglianza di stazioni ferroviarie impresenziate,
    1993
    , (Incontro per i progetti del C.N.R., C.N.R. - Workshop,
    Roma,
    Ottobre 1993)
  7. M. Omologo; P. Svaizer,
    Talker Localization and Speech Enhancement in a Noisy Environment using a Microphone Array based Acquisition System,
    Proceedings of EUROSPEECH,
    1993
    , pp. 605-
    608
    , (Eurospeech,
    Berlin, Germany,
    1993)
  8. Diego, Giuliani; Maurizio, Omologo; Piergiorgio, Svaizer,
    Preliminary Experiments of Talker Localization and Speech Recognition using a Microphone Array and a Cross-power Spectrum Phase Analysis,
    IEEE Workshop on ASR,
    1993
    , (Workshop on ASR,
    Snowbird, USA,
  9. Maurizio Omologo; Piergiorgio Svaizer,
    This work deals with the use of linear microphone arrays for acoustic event localaization in a noisy environment. Three techniques are investigated that allow delay estimation, namely Normalized Cross Correlation, LMS Adaptive Filters, CrossPower Spectrum Phase: they are combined with two bidimensional representations, in order to emphasize information that can be exploited for estimating position of both non-moving and moving acoustic sources.To compare the given techniques, different acoustic sources were considered, that generated events in different positions in space. Expressing performance in terms of accuracy of the wavefront direction angle, experiments showed that the CrosspowerSpectrum Phase based technique outperforms the other two.This technique provided very promising preliminary results also in terms of source position estimation. Finally, it resulted the most suitable for source tracking purposes.,
    1993

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