Use of the Harmonic Phase in several Speech Processing Applications


27.06.2011
Speaker : Inma Hernaez
Date : 27.06.2011
Time: 11:45 - 13:30
Location : Stelios Orphanoudakis Seminar Room
Host : Yannis Stylianou
Abstract:

In this talk the development of a new parameterization technique for the harmonic phase
of the speech signal will be described. The harmonic phase is derived from the classical
Harmonic plus Stocastic model, and simple manipulations over the original phase are
performed, leading to a nice and meaningful representation named Relative Phase Shift.
These values have been used in several speech processing applications, such as polarity
detection, Speech and Speaker recognition and detection of synthetic speech signals.
Some experiments and results will be described in the talk.

Additionally, the history and research activities at the Aholab Signal Processing
Laboratory of the University of the Basque Country will be presented.

Bio:

Inmaculada Hernaez Rioja holds an MS degree in Electrical Engineering from the
Universidad Politecnica de Catalunya (UPC) and a Ph.D. degree from the Universidad
del Pais Vasco (UPV/EHU) (1995), also in Electrical Engineering. Currently she is
full professor of the University of the Basque Country, giving courses related to Signal
Theory and Communications in the Telecommunications Engineering master and
degree. She is a founding member of the Aholab Signal Processing Laboratory and
presently leads the group activities. She is managing several national projects and has
established strong collaboration with private firms and public institutions to provide
knowledge and technology in speech applications as well as providing speech resources
for the technological development of the Basque language. Her present interests in
research include the use of the phase in different speech processing applications and the
development of high quality speech vocoders.