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. Maurizio Omologo; Piergiorgio Svaizer,
    Special purpose recordings,
    1999
  2. Maurizio Omologo; Piergiorgio Svaizer; Marco Matassoni,
    Environmental Conditions and Acoustic Transduction in Hands-Free Recognition,
    in «SPEECH COMMUNICATION»,
    vol. 25,
    1998
    , pp. 75 -
    95
  3. Omologo, Maurizio; Svaizer, Piergiorgio; De Mori, Renato,
    Acoustic Transduction,
    Spoken Dialogues with Computers,
    San Diego, California,
    Academic Press,
    1998
    , pp. 23 -
    67
  4. Diego Giuliani; Marco Matassoni; Maurizio Omologo; Piergiorgio Svaizer,
    Experiments of HMM Adaptation for Hands-free Connected Digit Recognition,
    Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing [ICASSP98],
    IEEE,
    vol.1,
    1998
    , pp. 473-
    476
    , (Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing [ICASSP98],
    Seattle, USA,
    05/1998)
  5. Diego Giuliani; Marco Matassoni; Maurizio Omologo; Piergiorgio Svaizer,
    HMM Adaptation for Hands-Free Connected Digit Recognition,
    A scenario concerning hands-free connected digit recognition in a noisy office environment is investigated. An array of six omnidirectional microphones and a corresponding time delay compensation module are used to provide a bamformed signal as input to a Hidden Markov Model (HMM) based recognizer. Two different techniques of phone HMM adaptation have been considered, to reduce the mismatch between training and test conditions. Adaptation material and test aterial were collected in two different sessions. Results show that a digit accuracy close to 98% can be achieved when the talker is at 1.5 m distance from the array. This result has to be compared with 99.5% accuracy obtained by using a close-talk microphone,
    1998
  6. Maurizio Omologo; Piergiorgio Svaizer,
    Use of the CrossPower-Spectrum Phase in Acoustic Event Location,
    in «IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING»,
    vol. 5,
    1997
    , pp. 288 -
    292
  7. Piergiorgio Svaizer; Maurizio Omologo; Marco Matassoni,
    Acoustic Source Location in a Three-Dimensional Space using Crosspower Spectrum Phase,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 1997),
    1997
    , pp. 231-
    234
    , (IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 1997),
    Munich, Germany,
    21/04/1997 - 24/04/1997)
  8. Maurizio Omologo; Marco Matassoni; Piergiorgio Svaizer; Diego Giuliani,
    Microphone Array based Speech Recognition with Different Talker-Array Positions,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 1997),
    1997
    , pp. 227-
    230
    , (IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 1997),
    Munich, Germany,
    21/04/1997 - 24/04/1997)
  9. Maurizio Omologo; Marco Matassoni; Piergiorgio Svaizer; Diego Giuliani,
    Hands-Free Speech Recognition in a Noisy and Reverberant Environment,
    Tutorial and Research Workshop on Robust speech recognition for unknown communication channels,
    1997
    , pp. 195-
    198
    , (Tutorial and Research Workshop on Robust speech recognition for unknown communication channels,
    Pont-a-Mousson, France,
    04/1997)
  10. Diego Giuliani; Marco Matassoni; Maurizio Omologo; Piergiorgio Svaizer,
    Use of Different Microphone Array Configurations for Hands-Free Speech Recognition in Noisy and Reverberant Environment,
    European Conference on Speech Communication and Technology (EUROSPEECH `97),
    ISCA,
    1997
    , pp. 347-
    350
    , (European Conference on Speech Communication and Technology (EUROSPEECH `97),
    Rhodes, Greece,
    22/09/1997 - 25/09/1997)

Pages