I am Tenured Scientist in Experimental and Applied Phonetics at CSIC, and director of the Phonetics Laboratory (CSIC). I also lead the research project How deepfake is your voice? Understanding the linguistic foundations of deepfakes, and I am the editor-in-chief of the journal Loquens.
I have completed two research stays in renowned phonetics labs: 3 months at the University of Marburg (2012) and 3 months at the University of Zurich (2017). In Marburg, I developed an important section of my dissertation: the analysis of twins’ voices using an ASR system. In Zurich (funded by the Swiss National Science Foundation), I produced important scientific contributions related to prosody. Besides, I have been member of the International Association for Forensic Phonetics and Acoustics since 2010, I have organized twice its annual conference and won twice its annual call for pilot research projects: in 2011, to study the voices of twins; in 2016, to investigate voice quality practices. In addition, I have given around 20 invited talks in 10 different countries.
I helped organizing around 15 activities while I was a PhD candidate at the CSIC Phonetics Laboratory, including the 2012 Week of Science and the interview for the popular science magazine QUO (2013). More recently, I organized an activity in the 2021 Week of Science, participated in a radio show at La Ventana, Cadena SER (April 2022) and in a roundtable about fake news and misinformation, organized by the Agencia Estatal de Investigación (November 2023). Four of my publications, including my thesis, are mentioned in the Best Practice Manual for the Methodology of Forensic Speaker Comparison published by the European Network of Forensic Sciences Institute.
I worked as linguistic consultant (2018-20) at the technological company Defined.ai, in several projects aimed at improving the quality of machine learning systems, which led to the signature of a transfer contract (“Artículo 83”) with UNED from 2021 to 2023.
PhD in Speech Sciences, 2014
Spanish National Research Council (CSIC), Madrid, Spain
MSc in Quantitative Research Methodology & Statistics Techniques, 2010
Statistics Laboratory, Higher Technical School of Industrial Engineering, Polytechnical University of Madrid, Spain
MA in Phonetics & Phonology, 2009
Spanish National Research Council (CSIC), Madrid, Spain
BA in Hispanic Studies, 2008
University of Salamanca, Spain
BA in English Studies, 2007
University of Salamanca, Spain
Teaching Innovation Project aimed at promoting students’ motivation, participation and performance improvement
Research project funded by the Spanish Ministry of Science and Innovation
Teaching Innovation Project implementing problem-based learning methods to Applied Linguistics (Forensic Linguistics, Clinical Linguistics)
International project at the Shanxi Police College (Taiyuan, China)
SNSF project aimed at testing whether perceptual ratings for vocal tract tension correlate with prosodic-acoustic measures.
IAFPA project aimed at providing a simplified, yet reliable and validated, perceptual protocol that could be used by forensic phoneticians to describe a speaker in terms of his/her voice quality, and/or when required to compare two or more voices using an auditory approach.
Arts & Humanities Research Council (AHRC) project
IAFPA project aimed at investigating the usefulness of analyzing speech samples of adult male Spanish siblings and twins (identical and fraternal), with a focus on analyzing formant trajectories in vocalic sequences.
University of New South Wales project funded by the Intelligence Advanced Research Projects Activity (IARPA), through the Army Research Laboratory (ARL)
Research project funded by the Spanish Ministry of Science and Innovation
I collaborated in several projects, mainly aimed at improving the quality of the Vocalizer TTS product of Nuance Communications Inc., providing verified phonetic transcriptions of music and news items, researching the pronunciation of new words and correcting transcriptions for words that failed the automatic-system checks and manual quality checks.
Responsibilities included:
Main skills:
Doctor Europaeus - Thesis: “Forensic speaker comparison of Spanish twins and non-twin siblings: A phonetic-acoustic analysis of formant trajectories in vocalic sequences, glottal source parameters and cepstral characteristics”
Achievements: - Largest twin data collection to date in Spanish (54 subjects, 108 hours). - Developed strong managerial and statistical skills. - Self-managed with minimal direction: responsible for all the logistics regarding equipment, participant identification and performing the data collection. - Tested different approaches to speaker ID: acoustic and semi-automatic analyses (ASR system output evaluation).
Main skills: - Strong analytical skills - Attention to detail - Excellent written communication skills - Ability to grasp technical concepts (collaboration with engineers and software developers: co-authors in my main publications) - Hands-on testing of several in-house tools (Biometrics software); monitored debugging process results - Knowledge of curve fitting methods and use of Bayesian data analysis.