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Peter S. Popolo received his PhD in Speech and Hearing Science from The University of Iowa; he also holds Bachelors' and Masters' degrees in Electrical Engineering from Rutgers University. With this background, he was able to customize his doctoral degree to combine digital speech and image processing technology with clinical applications in speech and voice, and he now contributes his talents as a Voice Scientist and Vocologist in the fields of acoustic analysis of voice and high-speed imaging of the vocal folds. Dr. Popolo has worked in industry developing diagnostic tools used by ear, nose, and throat (ENT) doctors and speech-language pathologists; and in academic settings, most recently at the National Center for Voice and Speech, where he helped develop tools for measuring vocal dose and performing ambulatory monitoring of voice to study vocal fatigue and recovery. Current research interests include the development of wearable biosensors to be used with smart phones to collect voice data from disordered voice patients over a cloud-based network, for the purpose of creating a database that can be used by researchers and clinicians to study the efficacy of vocal therapies and track improvements in their patients; and the development of new tools and techniques for high-speed video imaging of the larynx. Peter is a classically trained tenor, and has sung with Opera Colorado chorus, Colorado Symphony Chorus, The Cathedral Basilica of the Immaculate Conception of the Archdiocese of Denver, and most recently with Opera Theatre of Montclair.
Dr. Popolo runs the newly created Acoustics, Biosensors, and Imaging Laboratory (ABILAB) at MSU, and new research projects are currently underway. These include acoustic analysis of voice and high-speed imaging of the vocal folds, with a goal of relating the acoustic features extracted from the voice signal to the vibration characteristics extracted from the image data.
Peer-Reviewed Journal Articles
Popolo P.S. (2018). Investigation of Flexible High-Speed Video Nasolaryngoscopy. Journal of Voice, 32:529-537.
Popolo P.S., Titze I.R., Hunter E.J. (2011). Towards a self-rating tool of the inability to produce soft voice based on nonlinear events: A preliminary study. Acta Acustica United With Acustica, 97:373-381.
Popolo, P.S. & Titze, I.R. (2008). Qualification of a quantitative laryngeal imaging system using videostroboscopy and videokymography. Annals of Otology, Rhinology and Laryngology, 117:404-12.
Popolo, P.S., Svec, J.G. & Titze, I.R. (2005). Adaptation of a Pocket PC for use as a wearable voice dosimeter. Journal of Speech, Language and Hearing Research, 48:780-91.\s
Svec, J.G., Popolo, P.S. & Titze, I.R. (2003). Measurement of vocal doses in speech: experimental procedure and signal processing. Logoped Phoniatr Vocol, 28:181-92.
Titze, I.R., Riede, T. & Popolo, P.S. (2008). Nonlinear source-filter coupling in phonation: II. Vocal exercises. Journal of the Acoustical Society of America, 123: 1902–1915.
Svec, J.G., Titze, I.R. & Popolo, P.S. (2005). Estimation of sound pressure levels of voiced speech from skin vibration of the neck. Journal of the Acoustical Society of America, 117:1386-94.
Titze, I.R., Svec, J.G. & Popolo, P.S. (2003). Vocal dose measures: quantifying accumulated vibration exposure in vocal fold tissues. Journal of Speech, Language and Hearing Research, 2003, 46:919-32.
Emerich, K.A., Titze, I.R., Svec, J.G., Popolo, P.S. & Logan, G. (2005). Vocal range and intensity in actors: a studio versus stage comparison. Journal of Voice,19:78-83.
Popolo, P. S., Sanders, R. W., & Titze, I. R. (2007). Quantifying the speaking voice: Generating a speaker code as a means of speaker identification using a simple code-matching technique. 123rd Audio Engineering Society Convention, 1:456-468.
Popolo, P.S., Titze, I.R. (2007). Relating vocal fold amplitude of vibration to skin acceleration level on the anterior neck. MAVEBA (Models and Analysis of Vocal Emissions for Biomedical Applications), Firenze, Italy December 13 -15, 2007.
Popolo, P.S., Rogge-Miller, K., Svec, J.G. & Titze, I.R. (2002). Technical considerations in the design of a wearable voice dosimeter. Proceedings 7th ICSLP, Denver, CO, 2002
Sanders, R.W., Popolo, P.S. (2008). Extraction of electric network frequency signals from recordings made in a controlled magnetic field. 125th Audio Engineering Society Convention, 2008, 2:1143-1150.
Svec, J.G., Titze, I.R., Popolo, P.S. (2003). Vocal Dosimetry: Theoretical and Practical Issues. AQL 2003 Hamburg: Proceeding Papers for the Conference in Quantitative Laryngology, Voice and Speech Research
Popolo, P.S. & Turner, C.W. (2005). Recognition of vowels that have been spectrally warped according to the frequency map for the spiral ganglion. 149th Meeting of the Acoustical Society of America, Vancouver, Canada, May 16-20, 2005.
Popolo, P.S., Rogge-Miller, K., Svec, J.G. & Titze, I.R. (2002). Technical considerations in the design of a wearable voice dosimeter. 144th Meeting of the Acoustical Society of America, Cancun, Mexico, December 2-6, 2002.
CSND 702 Clinical Instrumentation for Speech-Language Pathology
CSND 596 Applying Research II
CSND 595 Applying Research I
CSND 534 Speech and Hearing Science
CSND 410 Neurological Bases of Communication
CSND 409 Anatomy and Physiology of Speech and Hearing Systems
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