Welcome to Phase Processing Lab (PhaseLab)

The current webpage is the companion site for the book entitled "Single Channel Phase-Aware Signal Processing in Speech Communication: Theory and Practice" published at John Wiley and Sons. The website presents the recent updates focused on Phase-Aware Signal Processing in Speech Communication topic and the recent advances made by PhaseLab research group lead by Dr. Pejman Mowlaee. While the state-of-the-art speech enhancement algorithm pre-dominantly rely on modifying the spectral amplitude information, recent progress highlight the positive impact of the spectral phase information in speech signal processing: speech enhancement, source separation, speech recognition, speech quality estimation, ...


Book at John Wiley and Sons

Abstract: The book presents a complete overview on the challenging new topic of phase-aware signal processing and provides a comprehensive guide to Phase-Aware Signal Processing in Speech Communication. After providing a rich history on phase importance in the literature, the basic problems and required fundamentals of phase processing are described. In the second part of the book, several applications are considered to exemplify the usefulness of phase processing. The book is available for order online at John Wiley & Sons, Inc. with the following links:

Research opportunity at PhaseLab

PhaseLab is seeking to hire research assistants and PhD candidates towards completing a thesis on the topic of Signal Processing for Speech Communication. The positions are embedded in the FWF project P 28070-N33 entiteld "Phase-Aware Signal Processing for Speech Communication" led by Dr. Pejman Mowlaee. For more details on the the PhD positions and to discuss about the topic see here) or just send an email to Email.


Recent Events and Some Background

The following events have been organized to address the topic of phase-aware speech signal processing and its applications:


Audio demos and some listening examples

In the following, we exemplify several recent applications of the spectral phase information for an improved signal processing perfomance. The selected applications are:

  • Speech enhancement
  • Source separation
  • Artificial bandwidth extension
  • Automatic speech recognition
  • Speech quality estimation

For further details on these applications, we refer to the following overview paper:

P. Mowlaee, R. Saeidi and Y. Stylianou, "Advances in Phase-Aware Signal Processing in Speech Communication, Speech Communication, vol. 81, pp. 1-29, 2016.

or the chapters in the following book:

P. Mowlaee, J. Kulmer, J. Stahl, F. Mayer, "Single Channel Phase-Aware Signal Processing in Speech Communication: Theory and Practice, John Wiley and Sons, Nov. 2016.