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Víctor Manuel Espinoza Catalán

Associate Professor

Universidad de Chile

Santiago, Chile

My research focuses on studying the human voice in the context of voice pathologies using signal processing, voice modeling, statistical analysis, and machine learning algorithms.

Licenciado en Ciencias de la Ingeniería, UNIVERSIDAD TECNOLÓGICA VICENTE PÉREZ ROSALES. Chile, 1999
Ingeniero Civil en Sonido y Acústica, UNIVERSIDAD TECNOLÓGICA VICENTE PÉREZ ROSALES. Chile, 2001
Ph.D. in Electronic Engineering, UNIVERSIDAD TECNICA FEDERICO SANTA MARIA. Chile, 2018

Profesor Instructor Part Time

UNIVERSIDAD TECNOLÓGICA VICENTE PÉREZ ROSALES

Santiago, Chile

2000 - 2006
Profesor Instructor Part Time

UNIVERSIDAD MAYOR

Facultad de Odontología y Fonoaudiología

Santiago, Chile

2001 - 2003
Profesor Instructor Part Time

UNIVERSIDAD DE VALPARAISO

Facultad de Medicina

San Felipe, Chile

2007 - 2007
Profesor Asistente Full Time

UNIVERSIDAD DE CHILE

Facultad de Artes

Santiago, Chile

2008 - A la fecha
Associate Professor Full Time

UNIVERSIDAD DE CHILE

Facultad de Artes

Santiago, Chile

2021 - A la fecha
Visiting Researcher Full Time

Massachusetts General Hospital (MGH)

Boston, Estados Unidos

2015 - 2015
Visiting Researcher Other

Massachusetts Institute of Technology

Boston, Chile

2014 - 2014
Graduate Research Assistant Part Time

Universidad Técnica Federico Santa María

Valparaiso, Chile

2014 - 2015

Co-Director / Ingeniero Part Time

SONOSUR S.A.

Santiago, Chile

2004 - 2007
Ingeniero Acústico Part Time

Inmobiliaria y Proyectos Acústicos S.A.

Chile

2000 - 2001

David Brewer Best Poster Awards

48th Symposium of The Voice Foundation

Chile, 2019

Classification Performance of Paired Subjects with Vocal Hyperfunction in the Presence of Subglottal Inverse Filtering Uncertainties: Pilot Study under Laboratory Conditions
Premio a Compromiso Institucional

INSTITUTO PROFESIONAL DUOC

Chile, 2011

Premio a Compromiso Institucional - Tecnología en Sonido


Ambulatory Monitoring of Subglottal Pressure Estimated from Neck-Surface Vibration in Individuals with and without Voice Disorders Cortes, Juan P.; Lin, Jon Z.; Marks, Katherine L.; Espinoza, Victor M.; Ibarra, Emiro J.; Zanartu, Matias; Hillman, Robert E.; Mehta, Daryush D. Article ISI APPLIED SCIENCES-BASEL (2022)
Kalman Filter Implementation of Subglottal Impedance-Based Inverse Filtering to Estimate Glottal Airflow during Phonation Cortes, Juan P.; Alzamendi, Gabriel A.; Weinstein, Alejandro J.; Yuz, Juan I.; Espinoza, Victor M.; Mehta, Daryush D.; Hillman, Robert E.; Zanartu, Matias Article ISI APPLIED SCIENCES-BASEL (2022)
Lombard Effect in Individuals With Nonphonotraumatic Vocal Hyperfunction: Impact on Acoustic, Aerodynamic, and Vocal Fold Vibratory Parameters Castro, Christian; Prado, Pavel; Espinoza, Victor M.; Testart, Alba; Marfull, Daphne; Manriquez, Rodrigo; Stepp, Cara E.; Mehta, Daryush D.; Hillman, Robert E.; Zanartu, Matias Article ISI JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH (2022)
Estimation of Subglottal Pressure, Vocal Fold Collision Pressure, and Intrinsic Laryngeal Muscle Activation From Neck-Surface Vibration Using a Neural Network Framework and a Voice Production Model Ibarra, Emiro J.; Parra, Jesus A.; Alzamendi, Gabriel A.; Cortes, Juan P.; Espinoza, Victor M.; Mehta, Daryush D.; Hillman, Robert E.; Zanartu, Matias Article ISI FRONTIERS IN PHYSIOLOGY (2021)
How Do Tube Diameter and Vocal Tract Configuration Affect Oral Pressure Oscillation Characteristics Caused by Bubbling During Water Resistance Therapy? Guzman, Marco; Castro, Christian; Acevedo, Karol; Moran, Camilo; Espinoza, Victor; Quezada, Camilo Article ISI Journal of Voice (2021)
Tissue Mobilization During Double Source of Vibration Semioccluded Vocal Tract Exercises: A Neck and Face Surface Acceleration Study Guzman, Marco; Acevedo, Karol; Castro, Christian; Moran, Camilo; Espinoza, Victor; Quezada, Camilo Article ISI JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH (2021)
Glottal Aerodynamics Estimated From Neck-Surface Vibration in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction Espinoza, Victor M.; Mehta, Daryush D.; Van Stan, Jarrad H.; Hillman, Robert E.; Zanartu, Matias Article ISI JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH (2020)
Improved Subglottal Pressure Estimation From Neck-Surface Vibration in Healthy Speakers Producing Non-Modal Phonation Lin, Jon Z.; Espinoza, Victor M.; Marks, Katherine L.; Zanartu, Matias; Mehta, Daryush D. Article ISI IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING (2020)
Estimating Vocal Fold Contact Pressure from Raw Laryngeal High-Speed Videoendoscopy Using a Hertz Contact Model DÃaz-CÃ¡diz M.E.; Peterson S.D.; Galindo G.E.; Espinoza V.M.; Motie-Shirazi M.; Erath B.D.; ZaÃ±artu M. Article ISI SCOPUS APPLIED SCIENCES-BASEL (2019)
The difference between first and second harmonic amplitudes correlates between glottal airflow and neck-surface accelerometer signals during phonation Mehta D.D.; Espinoza V.M.; Van Stan J.H.; ZaÃ±artu M.; Hillman R.E. Article ISI SCOPUS JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2019)
Ambulatory assessment of phonotraumatic vocal hyperfunction using glottal airflow measures estimated from neck-surface acceleration Cortés, Juan P.; Espinoza, Víctor M.; Ghassemi, Marzyeh; Mehta, Daryush D.; Van Stan, Jarrad H.; Hillman, Robert E.; Guttag, John V.; Zañartu, Matías; Mirjalili, Seyedali Article ISI SCOPUS PLOS ONE (2018)
Glottal Aerodynamic Measures in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction Espinoza V.M.; Zañartu M.; Van Stan J.H.; Mehta D.D.; Hillman R.E. Article ISI SCOPUS JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH (2017)
Using ambulatory voice monitoring to investigate common voice disorders: research update Mehta, Daryush D.; Van Stan, Jarrad H.; Zanartu, Matias; Ghassemi, Marzyeh; Gttuag, John, V; Espinoza, Victor M.; Cortes, Juan P.; Cheyne, Harold A., II; Hillman, Robert E. Article ISI FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY (2015)


A Normative Set of SPL-Normalized Measures from Normal Female Voices Espinoza, Víctor M.; Mehta, Daryush D.; Van Stan, Jarrad H.; Hillman, Robert E.; Zañartu, Matías ConferencePaper (2020)
Classification Performance of Paired Subjects with Vocal Hyperfunction in the Presence of Subglottal Inverse Filtering Uncertainties: Pilot Study under Laboratory Conditions Cortés, Juan P.; Espinoza, Víctor M.; et al. ConferencePaper David Brewer Award for Best Poster at 48th Annual Symposium, Care of the Professional Voice (2019)
Accelerometer-based aerodynamic measures for subjects with phonotraumatic hyperfunction: An in-laboratory study Espinoza, Victor M.; Zañartu, Matias; Mehta, Daryush D.; Van Stand, Jarrad H.; Hillman, Robert E. ConferencePaper (2018)
Aerodynamic Features for Ambulatory Voice Monitoring of Phonotraumatic Vocal Hyperfunction Zañartu, Matías; Cortés, Juan P.; Mehta, Daryush D.; Espinoza, Víctor M.; et al. ConferencePaper (2018)
Lombard effect and muscle tension dysphonia: acoustic, aerodynamic, biomechanical and cortical changes Castro, Christian; Prado, Pavel; Marfull, Dafne; Testart, Alba; Weinstein,Alejandro; Zepeda, L; Espinoza, Victor M.; Zañartu, Matias ConferencePaper (2018)
Métodos de Evaluación Clínica de la Voz basados en medidas Aerodinámicas y Vibroacústicas Espinoza, Víctor M.; et al. ConferencePaper (2018)
Differentiating between females with vocal hyperfunction and matched-controls using inverse filtered aerodynamic measures Espinoza, Victor M.; Zañartu, Matias; Van Stan, Jarrad H.; Mehta, Daryush D.; Hillman, Robert E. ConferencePaper (2016)
Discriminating patients with vocal fold nodules from matched controls using acoustic and aerodynamic features from ambulatory voice monitoring data Cortés, Juan P.; Espinoza, Victor M.; Zañartu, Matias; Ghassemi, Marzyeh; Guttag, John V.; Mehta, Daryush D.; Van Stan, Jarrad H.; Hillman, Robert E. ConferencePaper (2016)
Using aerodynamic features and their uncertainty for the ambulatory assessment of phonotraumatic vocal hyperfunction Cortés, Juan P.; Espinoza, Victor M.; Ghassemi, Marzyeh; Mehta, Daryush D.; Van Stand, Jarrad H.; Hillman, Robert E.; Guttag, John V.; Zañartu, Matias ConferencePaper (2016)
Vocal fold contact pressure estimation over laryngeal high speed videoendoscopy based on a vocal edge tracking method using Kalman Filter and Hertzian Impact model Diaz, Manuel; Galindo, Gabriel G.; Espinoza, Victor M.; Zañartu, Matias ConferencePaper (2016)
Toward an Objetive Aerodynamic Assessment of Vocal Hyperfunction using a Voice Health Monitor. Zañartu, Matias; Espinoza, Victor M.; Mehta, Daryush D.; Cheyne II, Harold; Ghassemi, Marzyeh; Guttag, John V.; Hillman, Robert E. ConferencePaper (2013)
Efecto Lombard y disfonía musculo tensional: cambios acústicos, aerodinámicos y biomecánicos Castro, Christian; Prado, Pavel; Marfull, Dafne; Testart, Alba; Espinoza, Víctor M.; et al. ConferencePaper
Estimación de medidas aerodinámicas ambulatorias con un filtro de Kalman para la evaluación de la hiperfunción vocal Cortés, Juan P.; Espinoza, Víctor M.; et al. ConferencePaper


Advanced Signal Processing, Machine Learning and Modeling on Voice-related Problems Zañartu, Matías; Espinoza Catalán, Víctor Manual Proyecto (2022)
Glottal aerodynamics estimated from inverse filtered neck-surface vibration in subjects with phonotraumatic and nonphonotraumatic vocal hyperfunction Espinoza Catalán, Víctor Manuel Proyecto (2021)
Clinical Research Center for Improved Prevention, Diagnosis and Treatment of Vocal Hyperfunction Hillman, Robert E.; Espinoza Catalán, Víctor Manuel Proyecto (2017)
Numerical Modeling and Other Engineering Tools for the Ambulatory Assessment of Vocal Function Zañartu, Matias; Espinoza, Victor M.; Guttag, John V. Proyecto Role: Graduate Research Assistant (2015)
System for laryngeal high-speed videoendoscopy Zañartu, Matias; Personnel – Graduate Research Assistant Proyecto Role: Graduate Research Assistant (2014)
Voice Health Monitoring: Developing Measures of Ambulatory Voice Quality and Dysphonia Zañartu, Matias; Guttag, John V. Proyecto Role: Graduate Research Assistant (2014)
Physics-based model of voice production Zañartu, Matias; Personnel – Graduate Research Assistant Proyecto Role: Graduate Research Assistant (2013)
The Development of Ambulatory Biofeedback Approaches to More Effectively Treat Common Voice Disorders Zañartu, Matias; Guttag, John V. Proyecto Role: Graduate Research Assistant (2012)
Dynamic model-based algorithm for the ambulatory monitoring of vocal function using neck surface acceleration Zañartu, Matias Proyecto Role: Graduate Research Assistant (2011)