Aaron Lawson
Assistant Laboratory Director, Speech Technology and Research Laboratory (STAR)
Aaron Lawson, Ph.D., is Assistant Director of SRI International’s Speech Technology and Research (STAR) Laboratory. His research interests include voice forensics and biometrics, language and speaker identification from speech, social media information extraction, noise robustness, and fielding systems.
At SRI, Lawson is the co-PI of the SAVI team for the DARPA MediFor program and is SRI transition lead for the DARPA RATS program. He currently leads the Human Language Technology project with JHU Applied Physics Lab, Forensic Speaker Recognition projects with the Federal Bureau of Investigation and transition efforts with the Navy and Special Operations Forces. He was PI for SRI’s LinguaKey team for DARPA Active Authentication. Past projects include IARPA REYNARD and BEST.
Prior to joining SRI, Lawson was a research scientist at Air Force Research Laboratory/RADC in the Audio Processing Group. Earlier, he was a natural language processing researcher at TextWise, LLC.
Lawson has published more than 30 papers covering speech, natural language and linguistics. His Ph.D. in applied linguistics is from Cornell University.
Recent publications
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Toward Fail-Safe Speaker Recognition: Trial-Based Calibration with a Reject Option
In this work, we extend the TBC method, proposing a new similarity metric for selecting training data that results in significant gains over the one proposed in the original work.
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Robust Speaker Recognition from Distant Speech under Real Reverberant Environments Using Speaker Embeddings
This article focuses on speaker recognition using speech acquired using a single distant or far-field microphone in an indoors environment.
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Analysis of Complementary Information Sources in the Speaker Embeddings Framework
In this study, our aim is analyzing the behavior of the speaker recognition systems based on speaker embeddings toward different front-end features, including the standard MFCC, as well as PNCC,…
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Voices Obscured in Complex Environmental Settings (VOiCES) corpus
This work is a multi-organizational effort led by SRI International and Lab41 with the intent to push forward state-of-the-art distant microphone approaches in signal processing and speech recognition.
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Analysis of Phonetic Markedness and Gestural Effort Measures for Acoustic Speech-Based Depression Classification
In this paper we analyze articulatory measures to gain further insight into how articulation is affected by depression.
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Calibration Approaches for Language Detection
In this paper, we focus on situations in which either (1) the system-modeled languages are not observed during use or (2) the test data contains OOS languages that are unseen…