SPAN is an interdisciplinary research team at the University of Southern California, bringing together faculty and students from the Viterbi School of Engineering, and the Department of Linguistics. Our work involves collaborations with researchers in the Departments of Psychology and the Keck School of Medicine, and with other research institutions including Haskins Laboratories.


Shrikanth (Shri) Narayanan
University Professor
Niki & C. L. Max Nikias Chair in Engineering
USC Electrical & Computer Engineering, Computer Science
Louis Goldstein
Professor of Linguistics
USC Linguistics
Dani Byrd
Professor of Linguistics
USC Linguistics
Krishna Nayak
USC Electrical & Computer Engineering
Khalil Iskarous
Associate Professor of Linguistics
USC Linguistics
Uttam Sinha
USC Otolaryngology & Head and Neck Surgery

Research Scientist

Reed Blaylock
USC Linguistics

phd students

Prakash Kumar
USC Electrical & Computer Engineering
prakashk AT usc DOT edu
Sean Foley
USC Linguistics
seanfole at
Kevin Huang
USC Electrical & Computer Engineering
kevinyhu at
Xuan Shi
USC Electrical & Computer Engineering
Yijing Lu
USC Linguistics
Jessica Campbell
USC Linguistics
jac95339 AT
Haley Hsu
USC Linguistics
haleyhsu AT
Yubin Zhang
USC Linguistics
yubinzha AT
Ziwei Zhao
USC Electrical Engineering

span alumni

Sungbok Lee (Research Assistant Professor 2002-2017)
Asterios Toutios
(Research Assistant Professor, 2012-2021)
Research Scientist
Yoon-Chul Kim (PhD Student 2006-2010, Postdoc 2011-2014)
Research Scientist
Samsung Medical Center, Seoul, South Korea
Rachel Walker
Professor of Linguistics
UCSC Linguistics
Michael Proctor (Postdoc 2009-2012)
Macquarie University, Sydney, Australia
Nassos Katsamanis (Postdoc 2009-2012)
CTO/VP of Engineering, Behavioral Signals
Principal Researcher, Athena Research Center
Sajan Goud Lingala (Postdoc 2014-2017)
Assistant Professor
Department of Biomedical Engineering and Department of Radiology, University of Iowa
Johannes Töger (Postdoc 2015-2016)
Associate Senior Lecturer, Clinical Physiology
Lund University, Sweden
Samantha Gordon Danner (PhD Student and Postdoc, 2014-2019)
Special Project Manager
USC Viterbi School of Engineering
Erik Bresch (PhD Student 2005-2011)
Research Scientist
Philips, Corporate Research, Eindhoven, The Netherlands
Prasanta Kumar Ghosh (PhD Student 2006-2011)
Associate Professor
Indian Institute of Science, Bangalore, India
Adam Lammert (PhD Student 2008-2014)
Assistant Professor
Biomedical Engineering, Worcester Polytechnic Institute
Vikram Ramanarayanan (PhD Student 2009-2014)
Research Scientist
Education Testing Services, San Francisco, CA
Benjamin Parrell (PhD Student 2007-2014)
Associate Professor
Communication Sciences and Disorders, University of Wisconsin-Madison
Yinghua Zhu (PhD Student 2010-2015)
Software Engineer
Google Inc.
Christina Hagedorn (PhD Student 2009-2015)
Associate Professor
City University of New York
Jangwon Kim (PhD Student 2010-2015)
Applied Scientist
Amazon Alexa
Fang-Ying Hsieh (PhD Student 2011-2016)
Linguist Specialist
Oben Inc.
Cynthia (Yoonjeong) Lee (PhD Student, 2012-2018)
Postdoctoral Scholar
Department of Head and Neck Surgery, UCLA
Caitlin Smith (PhD Student, 2011-2018)
Postdoctoral Fellow
Department of Cognitive Science, Johns Hopkins University
Colin Vaz (PhD Student, 2011-2018)
Research Scientist
Amazon Alexa
Weiyi "Wayne" Chen (PhD Student, 2014-2019)
Tanner Sorensen (PhD Student, 2015-2020)
Research Scientist
Cobalt Speech and Language
Krishna Somandepalli (PhD Student, 2015-2021)
Software Engineer
Google Inc.
Yongwan Lim (PhD Student, Postdoc Scientist, 2015-2022)
Software Engineer
Apple Inc.
Miran Oh (PhD Student, 2016-2021)
AI/ML Engineer
Apple Inc.
Sarah Harper (PhD Student, 2016-2021)
Postdoc Scholar
Rahul Sharma (PhD Student, 2018-2023)
Rachel Alexander (Undergraduate and Master's Research Assistant, 2015-2019)
Software Engineer
Google Inc.
Melissa Xu (Undergraduate and Master's Research Assistant, 2017-2020)
Fulbright Scholar
Li Hsuan Lu (Undergraduate Research Assistant, 2011-2014)
Software Engineer
Nimisha Patil (Undergraduate Research Assistant, 2015-2017)
MBA Candidate
Harvard Business School