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ISCA Special Interest Group

Security and Privacy in Speech Communication (SPSC)

Aims. The purpose of the SPSC is to promote research in those aspects of security and privacy which are related to speech communication; to provide a platform for communication for members of ISCA who are interested in security and privacy; to promote interdisciplinary research and collaboration also beyond ISCA, with areas such as user-interface design, study of the law, cryptography, and cognitive sciences.

Motivation. An increasing number of devices are connected to the Internet and feature a microphone. These devices can provide many useful services such as personal speech assistance and security monitoring. Moreover, automated speech interfaces are becoming more common in many services such as banking, call centres and medical services. This trend however exposes users to an increasing number of threats to their privacy and security. The growing amount of data increases the consequences of breaches, whereas the risk of a breach is increasing with the number of locations where data is processed and stored, the amount of data, the processing methods, storage formats and with whom the data is shared. Privacy and security is an interdisciplinary topic which ranges over all areas of ISCA, including among others, computer science, linguistics, phonetics, acoustics, cognitive sciences and medical sciences. To counter threats to security and privacy we therefore need collaboration across all areas of expertise within ISCA.
The analysis of security and privacy in speech communication, while aiming at transparency to non-experts in speech technology (e.g., system integrators, management, journalists, and the larger public), requires to develop taxonomies to interrelate research outcomes within a bigger picture. These taxonomies provide classification schemes and semantics to security and privacy in speech communication regarding, e.g.

  1. The information in speech which merits protection,
  2. Capture of speech signals,
  3. Processing of speech data,
  4. Storage of speech data,
  5. Entities in speech data life-cycles,
  6. User-interface design,
  7. Case studies and
  8. Technology safeguards.

In other words, SPSC will not only tackle safeguard technology but also will pursue to frame their context in a way useful to services and products in speech communication.





The elected officers for 2023-2025 are:


Dr. Jennifer Williams


University of Southampton



Dr.-Ing. Ingo Siegert


Otto von Guericke University





Prof. Dr.-ing. Dorothea Kolossa

Outreach team

Technische Universität Berlin



Prof. Nicholas Evans

Outreach team




Karla Pizzi

Education team

Fraunhofer AISEC



Dr. Sneha Das

Outreach & Education team

Technical University of Denmark



Dr. Xin Wang

Education team

National Institute of Informatics



Prof. Tom Bäckström 

Advisory board

Aalto University, Finland



Dr. Candy Olivia Mawalim

 Education team

Japan Advanced Institute of

Science and Technology



The steering committee (formed in March 2020) in alphabetical order by last name:

  • Prof. Jean-François Bonsatre, Avignon Université, France (website)
  • Prof. Mads Græsbøll Christensen, Aalborg Universitet, Denmark (website)
  • Prof. Nicholas Evans, Eurecom, France (website)
  • Catherine Jasserand, Katholieke Universiteit te Leuven, Belgium (website)
  • Prof. Els Kindt, Katholieke Universiteit te Leuven, Belgium (website)
  • Prof. Dorothea KolossaTechnische Universität Berlin, Germany (website)
  • Prof. Rainer Martin, Ruhr-Universität Bochum, Germany (website)
  • Prof. Sebastian Möller, Technische Universität Berlin, Germany (website)
  • Prof. Bhiksha Raj, Carnegie Mellon University, USA (website)
  • Prof. Korbinian Riedhammer, Technische Hochschule Nürnberg, Germany (website)
  • Prof. Stephan Sigg, Aalto University, Finland (website)
  • Prof. Isabel Trancoso, INESC-ID/Universidade de Lisboa, Portugal (website)
  • Emmanuel Vincent, Inria Nancy, France (website)
  • Prof. Junichi Yamagishi, National Institute of Informatics, Japan (website)


SPSC-SIG online:   Twitter Linkedin Slack