Víctor Manuel Espinoza Catalán

Associate Professor

Universidad de Chile

Santiago, Chile

Líneas de Investigación

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

Experiencia Académica

  •   Profesor Instructor Part Time


    Santiago, Chile

    2000 - 2006

  •   Profesor Instructor Part Time


    Facultad de Odontología y Fonoaudiología

    Santiago, Chile

    2001 - 2003

  •   Profesor Instructor Part Time


    Facultad de Medicina

    San Felipe, Chile

    2007 - 2007

  •   Profesor Asistente Full Time


    Facultad de Artes

    Santiago, Chile

    2008 - A la fecha

  •   Associate Professor Full Time


    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

Experiencia Profesional

  •   Co-Director / Ingeniero Part Time


    Santiago, Chile

    2004 - 2007

  •   Ingeniero Acústico Part Time

    Inmobiliaria y Proyectos Acústicos S.A.


    2000 - 2001

Premios y Distinciones

  •   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


    Chile, 2011

    Premio a Compromiso Institucional - Tecnología en Sonido


Article (13)

Ambulatory Monitoring of Subglottal Pressure Estimated from Neck-Surface Vibration in Individuals with and without Voice Disorders
Kalman Filter Implementation of Subglottal Impedance-Based Inverse Filtering to Estimate Glottal Airflow during Phonation
Lombard Effect in Individuals With Nonphonotraumatic Vocal Hyperfunction: Impact on Acoustic, Aerodynamic, and Vocal Fold Vibratory Parameters
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
How Do Tube Diameter and Vocal Tract Configuration Affect Oral Pressure Oscillation Characteristics Caused by Bubbling During Water Resistance Therapy?
Tissue Mobilization During Double Source of Vibration Semioccluded Vocal Tract Exercises: A Neck and Face Surface Acceleration Study
Glottal Aerodynamics Estimated From Neck-Surface Vibration in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction
Improved Subglottal Pressure Estimation From Neck-Surface Vibration in Healthy Speakers Producing Non-Modal Phonation
Estimating Vocal Fold Contact Pressure from Raw Laryngeal High-Speed Videoendoscopy Using a Hertz Contact Model
The difference between first and second harmonic amplitudes correlates between glottal airflow and neck-surface accelerometer signals during phonation
Ambulatory assessment of phonotraumatic vocal hyperfunction using glottal airflow measures estimated from neck-surface acceleration
Glottal Aerodynamic Measures in Women With Phonotraumatic and Nonphonotraumatic Vocal Hyperfunction
Using ambulatory voice monitoring to investigate common voice disorders: research update

ConferencePaper (13)

A Normative Set of SPL-Normalized Measures from Normal Female Voices
Classification Performance of Paired Subjects with Vocal Hyperfunction in the Presence of Subglottal Inverse Filtering Uncertainties: Pilot Study under Laboratory Conditions
Accelerometer-based aerodynamic measures for subjects with phonotraumatic hyperfunction: An in-laboratory study
Aerodynamic Features for Ambulatory Voice Monitoring of Phonotraumatic Vocal Hyperfunction
Lombard effect and muscle tension dysphonia: acoustic, aerodynamic, biomechanical and cortical changes
Métodos de Evaluación Clínica de la Voz basados en medidas Aerodinámicas y Vibroacústicas
Differentiating between females with vocal hyperfunction and matched-controls using inverse filtered aerodynamic measures
Discriminating patients with vocal fold nodules from matched controls using acoustic and aerodynamic features from ambulatory voice monitoring data
Using aerodynamic features and their uncertainty for the ambulatory assessment of phonotraumatic vocal hyperfunction
Vocal fold contact pressure estimation over laryngeal high speed videoendoscopy based on a vocal edge tracking method using Kalman Filter and Hertzian Impact model
Toward an Objetive Aerodynamic Assessment of Vocal Hyperfunction using a Voice Health Monitor.
Efecto Lombard y disfonía musculo tensional: cambios acústicos, aerodinámicos y biomecánicos
Estimación de medidas aerodinámicas ambulatorias con un filtro de Kalman para la evaluación de la hiperfunción vocal

Proyecto (9)

Advanced Signal Processing, Machine Learning and Modeling on Voice-related Problems
Glottal aerodynamics estimated from inverse filtered neck-surface vibration in subjects with phonotraumatic and nonphonotraumatic vocal hyperfunction
Clinical Research Center for Improved Prevention, Diagnosis and Treatment of Vocal Hyperfunction
Numerical Modeling and Other Engineering Tools for the Ambulatory Assessment of Vocal Function
System for laryngeal high-speed videoendoscopy
Voice Health Monitoring: Developing Measures of Ambulatory Voice Quality and Dysphonia
Physics-based model of voice production
The Development of Ambulatory Biofeedback Approaches to More Effectively Treat Common Voice Disorders
Dynamic model-based algorithm for the ambulatory monitoring of vocal function using neck surface acceleration
Víctor Espinoza

Associate Professor

Departamento de Sonido

Universidad de Chile

Santiago, Chile

Matias Zañartu

Associate Professor

Electronic Engineering


Valparaiso, Chile

Juan Cortés

Scientific Researcher

Electronic Engineering

Lanek SPA

Valparaíso, Chile

Karol Acevedo

Docente investigadora

Facultad de Odontología y Ciencias de la Rehabilitación

Universidad San Sebastián

Santiago, Chile

Marco Guzmán

Profesor Asociado

Universidad de Los Andes

Santiago, Chile

Alejandro Weinstein


Escuela de Ingenieria Civil Biomedica

Universidad de Valparaiso

Valparaiso, Chile

Gabriel Galindo


Ingeniería Electrónica


Valparaíso, Chile

Pavel Prado

Lead Researcher

Universidad Adolfo Ibáñez

Latin American Brain Health Institute (BrainLat)

Santiago de Chile, Chile