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CURRICULUM VITAE
I. GENERAL INFORMATION
Name:
Office Address:
Daryush Dinyar Mehta
Center for Laryngeal Surgery and Voice Rehabilitation
One Bowdoin Square
Boston, MA 02114
Home Address:
7 1/2 Centre Street, Apt 31, Cambridge, MA 02139
E-mail: daryush.mehta@alum.mit.edu
Phone: 617-599-0328
Place of Birth: Kissimmee, Florida
Education:
8/2003
2/2006
2/2010
B.S.
S.M.
Ph.D.
Fax: 617-726-0222
University of Florida: Electrical Engineering
Massachusetts Institute of Technology: Electrical Engineering and Computer Science
Massachusetts Institute of Technology: Speech and Hearing Bioscience and Technology
Postdoctoral Training:
3/2010–present
Postdoctoral Fellow
Electrical Engineering
Harvard University
Major Committee Assignments:
Affiliated Institution
2004–2009
Organizer, Voice Quality Study Group, Speech and Hearing Bioscience and Technology
Program (SHBT), Harvard-MIT Division of Health Sciences and Technology (HST)
2007–2008
Chair, Distinguished Lecture Series Committee, SHBT, HST
2007–2009
Member, Doctoral Admissions Committee, SHBT, HST
2007–2010
Member, Doctoral Recruitment Committee, SHBT, HST
2008
Chair, MGH Voice Center Research Forum, Center for Laryngeal Surgery and Voice
Rehabilitation, Massachusetts General Hospital (MGH)
Professional Societies:
2001–present Member, Institute of Electrical and Electronics Engineers
2005–present Member, Acoustical Society of America
Awards and Honors:
2009
First Place Poster Award in Laryngology/Bronchoesophagology - Awarded the best
poster at the Eastern Section of the Triological Association conference
2009
Best Student Paper in Speech Communication (Co-Author) - Awarded the best poster at
the Acoustical Society of America conference
2010
Broyles-Maloney Award (Co-Author) - Awarded annually to outstanding manuscripts
submitted to the Annual Meeting of the American Broncho-Esophagological Association
II. RESEARCH, TEACHING, AND CLINICAL CONTRIBUTIONS
A. Narrative Report of Research, Teaching, and Clinical Contributions: In terms of research, I have recently
completed my doctoral dissertation in the Speech and Hearing Bioscience and Technology (SHBT) program
within the Harvard-MIT Division of Health Sciences and Technology (HST). As a member of the Center for
Laryngeal Surgery and Voice Rehabilitation (Voice Center) at the Massachusetts General Hospital (MGH), I
investigated the details of the relationship between the motion of the vocal folds (“voice box”) and the
acoustics of voice production. My expertise is in signal processing and acoustic voice analysis, and I
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brought these engineering tools to clinical voice research. I helped implement a comprehensive high-speed
imaging system to quantify vocal fold vibratory characteristics and relate them to voice-related sensor
measurements and mathematical model data. Thesis results aid voice surgeons and speech-language
pathologists in better understanding the mechanisms of normal and disordered voice production. This
research was funded by the National Institute on Deafness and Other Communication Disorders at the
National Institutes of Health and the Institute for Laryngology and Voice Restoration.
In terms of teaching, I was a Teaching Assistant for the Acoustics of Speech and Hearing course, a core
requirement in the SHBT program. I also presented mini-seminars internally and to other laboratory groups and
frequently educated clinicians and visiting researchers on the latest advances made by the Voice Center. For the
past three years, I have taught and developed a few lectures as a substitute teacher in the Graduate Program in
Communication Sciences and Disorders at the MGH Institute of Health Professions (IHP). In 2004, I co-founded
and led the Voice Quality Study Group (VQSG), which brought together faculty and students from MGH, MIT,
and Harvard to discuss research articles and host guest speakers. VQSG met once every two weeks for 90
sessions over the span of four years.
B. Funding Information (all grants listed are for research):
2007–2012
NIH/NIDCD Research Assistant
Efficacy of Laryngeal High-Speed Videoendoscopy:
Subcontract from University of South Carolina
($939,031)
C. Report of Current Research Activities:
As a Postdoctoral Fellow, I am continuing research efforts into the clinical analysis of normal and disordered
voice production with particular emphasis on gaining knowledge and experience with advanced statistical signal
processing algorithms. My research bridges the areas of statistics at Harvard University (PI: Patrick J. Wolfe,
PhD) and clinical voice disorders at the MGH Voice Center (PI: Robert E. Hillman, PhD). I will be participating
in three active research projects:
Efficacy of laryngeal high-speed videoendoscopy: I am continuing to support data collection and analysis for this
subcontract in which I have been involved since its inception in 2007. The goals of this research direction are to
investigate the benefits and utility of high-speed imaging systems for clinical voice applications and voice
research. The PI of this subcontract is Robert E. Hillman, PhD, at the MGH Voice Center.
Statistical methods for speech signal processing: This effort encompasses the development and implementation of
rigorous statistical algorithms to efficiently and accurately analyze voice and speech sounds. Specific topics
include speech formant tracking and estimation of the amount of turbulent noise present during voice production.
Voice restoration subsequent to vocal fold scarring: This project aims to develop and clinically test new
biomaterials and procedures for restoring vocal function to patients who have vocal fold scars. The PI is Steven
M. Zeitels, MD, Director of the MGH Voice Center. I provide support through my knowledge of high-speed
video hardware and imaging processing algorithms to quantify salient vocal fold vibratory characteristics.
D. Report of Teaching:
1. Local Contributions:
Courses:
Harvard-MIT Division of Health Sciences and Technology
2009
Acoustics of Speech and Hearing
Teaching Assistant
6–9 Doctoral Students in speech and hearing sciences and affiliated fields
48 hours/year (Preparation), 12 hours/year (Contact)
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3/2010
MGH Institute of Health Professions
2007–2009
Acoustic Phonetics
Guest Lecturer
20-40 Graduate Students in Speech-Language Pathology
16 hours/year (Preparation), 4 hours/year (Contact)
Invited Lectures, Miniseminars and Short Courses:
2007
Introduction to Probability, Tutorial to doctoral students in speech and hearing sciences,
SHBT, HST (1 hour)
2007
Graduate Student Perspectives, Seminar for doctoral students in the Harvard-MIT
Division of Health Sciences and Technology (1 hour)
2008
Visualizing the Voice, Presentation to master’s-level and doctoral students in the
Statistics and Information Sciences Laboratory, Harvard University (1 hour)
2009
Human Vocal Folds in Action, Seminar to engineers and computer scientists at The
MathWorks, Natick, MA (1 hour)
III. Bibliography
Original Articles:
1. Mehta DD, Deliyski DD, Zeitels SM, Quatieri TF, Hillman RE. Voice production mechanisms following
phonosurgical treatment of early glottic cancer. Annals of Otology, Rhinology, and Laryngology 2010;119:1–9.
2. Mehta DD, Deliyski DD, Hillman RE. Why laryngeal stroboscopy really works: clarifying misconceptions
surrounding Talbot’s law and the persistence of vision. Journal of Speech, Language, and Hearing Research. In
press.
3. Mehta DD, Deliyski DD, Quatieri TF, Hillman RE. Automated measurement of vocal fold vibratory
asymmetry form high-speed videoendoscopy recordings. Journal of Speech, Language, and Hearing Research. In
press.
Proceedings of Meetings:
1. Mehta D, Quatieri, TF. Synthesis, analysis, and pitch modification of the breathy vowel. Proceedings of the
IEEE Workshop on Applications of Signal Processing to Audio and Acoustics; 2005; New Paltz, NY.
2. Mehta D, Quatieri TF. Pitch-scaled modification using the modulated aspiration noise source. Proceedings of
the International Conference on Spoken Language Processing; 2006; Pittsburgh, PA.
3. Lulich SM, Zañartu M, Mehta DD, Hillman RE. Source-filter interaction in the opposite direction: subglottal
coupling and the influence of vocal fold mechanics on vowel spectra during the closed phase. Proceedings of
Meetings on Acoustics 2009;6(060007):1–14.
Reviews, Chapters and Editorials:
1. Mehta D, Hillman, RE. Use of aerodynamic measures in clinical voice assessment. Perspectives on Voice and
Voice Disorders 2007;17(3). American Speech-Language-Hearing Association, Division 3.
2. Mehta DD, Hillman RE. Voice assessment: updates on perceptual, acoustic, aerodynamic, and endoscopic
imaging methods. Current Opinion in Otolaryngology & Head and Neck Surgery 2008;16:211–215.
3. Hillman RE, Mehta, DD. The science of stroboscopic imaging. In: K. Kendall and R Leonard, eds. Laryngeal
evaluation: indirect laryngoscopy to high-speed digital imaging. New York: Thieme Medical Publishers, Inc;
2010 (in press). p. 101–9.
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Thesis:
1. Mehta D. Aspiration noise during phonation: Synthesis, analysis, and pitch-scale modification [dissertation].
Cambridge (MA): Massachusetts Institute of Technology; 2006. Master’s degree in Electrical Engineering and
Computer Science.
2. Mehta DD. Impact of human vocal fold vibratory asymmetries on acoustic characteristics of sustained vowel
phonation [dissertation]. Cambridge (MA): Massachusetts Institute of Technology; 2010. Doctoral degree in
Speech and Hearing Bioscience and Technology.
Abstracts:
1. Mehta D, Quatieri TF. Aspiration noise during phonation: synthesis, analysis, and pitch-scale modification .
Harvard-MIT Division of Health Sciences and Technology Forum; 2006; Cambridge, MA.
2. Mehta D, Hillman RE, Quatieri TF. High-speed color videoendoscopy of human voice production . HarvardMIT Division of Health Sciences and Technology Forum; 2007; Cambridge, MA.
3. Mehta D, Deliyski D, Quatieri TF, Zeitels SM, Hillman RE. Ultra high-speed color videoendoscopy of human
voice production . Proceedings of the American Speech-Language-Hearing Association Convention; 2007;
Boston, MA.
4. Mehta DD, Deliyski DD, Zeitels SM, Zañartu M, Hillman RE. Integration of ultra high-speed color
videoendoscopy with time-synchronized measures of vocal function . Proceedings of The Eastern Section of the
Triological Society; 2009; Boston, MA.
5. Zañartu M, Ho JC, Mehta DD, Hillman RE, Wodicka GR. An impedance-based inverse filtering scheme with
glottal coupling . Proceedings of the Acoustical Society of America; 2009; Portland, OR.
6. Lulich SM, Zañartu M, Mehta DD, Hillman RE. Source-filter interaction in the opposite direction: subglottal
coupling and the influence of vocal fold mechanics on vowel spectra during the closed phase . Proceedings of
The Acoustical Society of America; 2009; Portland, OR.
7. Hillman RE, Mehta DD, Deliyski DD, Zeitels SM. Voice production mechanisms following phonosurgical
treatment of early glottic cancer. Proceedings of the American Broncho-Esophagological Association; 2009;
Phoenix, AZ.
8. Karajanagi SS, Lopez-Guerra G, Park H, Kobler JB, Mehta DD, Kumai Y, Heaton JT, Herrera VLM, Hillman
RE, Zeitels SM. Assessment of canine vocal fold function after injection of a new biomaterial designed to treat
phonatory mucosal scarring. Proceedings of the American Broncho-Esophagological Association; 2010; Las
Vegas, NV.
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