Research | Jenny Vojtech

Journal Publications

Kapsner-Smith, M.R., Gill, A., Muzila, A., Polyakova, T., Rubeski, A., Kline, J., Stepp, C.E., Vojtech, J. "Validation of a Python-Based Graphical User Interface for Calculation of Relative Fundamental Frequency." Journal of Voice, In Press. PDF
Buckley, D.P., Stepp, C.E., & Vojtech, J. "Normative Thresholds for Acoustic Estimates of Relative Fundamental Frequency." Journal of Voice, In Press. PDF
Raiff, L., Turashvili, D., Heaton, J.T., De Luca, G., Kline, J.C., & Vojtech, J. "Prosodic Preferences of Surface Electromyography-based Subvocal Speech for People With Laryngectomy." Journal of Voice, S0892-1997(24)00373-4, In Press. PDF
Vojtech, J., Toles, L.E., Buckley, D.P., & Stepp, C.E. "Capturing the intraspeaker heterogeneity of vocal hyperfunction using spatiotemporal indices of relative fundamental frequency." Journal of Speech, Language, and Hearing Research, 68(1), 1–16, 2025. PDF
Madoule, M.D., Marks, K.L., Nagle, K.F., Kirchgessner, E., Gill, A., Kline, J.C., Vojtech, J.M., & Stepp, C.E. "Qualitative Analysis of Speech-Language Pathologists' Voice Evaluation Practices and Perspectives." American Journal of Speech-Language Pathology, 1–16, 2025. PDF
Weerathunge, H.R., Vojtech, J., Dunsmuir, C.J., Cocroft, S.J., Díaz-Cádiz, M.E., McKenna, V., & Stepp, C.E. "Characterization of Vocal Motor Control Using Laryngeal Kinematics in Individuals with Hyperfunctional Voice Disorder." Journal of Speech, Language, and Hearing Research, 1–15, 2025. PDF
Groll, M.D., Peterson, S.D., Zañartu, M., Vojtech, J.M., & Stepp, C.E. "Empirical Evaluation of the Role of Vocal Fold Collision on Relative Fundamental Frequency in Voicing Offset." Journal of Voice, 39(2), 345–352, 2025. PDF
Vogel, A.P., Spencer, C., Burke, K. de Bruyn, D., Gibilisco, P., Blackman, S., Vojtech, J.M., & Kathiresan, T. "Optimizing Communication in Ataxia: A Multifaceted Approach to Alternative and Augmentative Communication (AAC)." Cerebellum, 1–10, 2024. PDF
Al-Mfarej, D., Vojtech, J.M., Roy, S.H., Townsend, E., Keysor, J.J., Kuntz, N., Rao, V., Kline, J.C., & Shiwani, B. "A Virtual Reality Exergame: Clinician-Guided Breathing and Relaxation for Children with Muscular Dystrophy." Proceedings – 2023 IEEE Conference on Virtual Reality and 3D User Interfaces, 270–276, 2024. PDF
Buckley, D.P., Vojtech, J.M., & Stepp, C.E. "Relative fundamental frequency in individuals with globus syndrome and muscle tension dysphagia." Journal of Voice, 38(3), 612–8, 2024. PDF
Vojtech, J.M. & Stepp, C.E. "Effects of Age and Parkinson's disease on the Relationship between Vocal Fold Abductory Kinematics and Relative Fundamental Frequency." Journal of Voice, 38(5), 1008–22, 2024.
Vojtech, J.M., Mitchell, C.L., Raiff, L., Kline, J.C., & De Luca, G. "Prediction of Voice Fundamental Frequency and Intensity from Surface Electromyographic Signals of the Face and Neck." Vibration, 5(4), 692–710, 2023. PDF
McKenna, V.S., Vojtech, J.M., Previtera, M., Kendall, C.L., & Carraro, K.E. "A Scoping Literature Review of Relative Fundamental Frequency (RFF) in Individuals with and without Voice Disorders." Applied Sciences, 12, 8121, 2022. PDF
Mitchell, C.L., Cler, G.J., Fager, S.K., Contessa, P., Roy, S.H., De Luca, G., Kline, J.C., & Vojtech, J.M. "Ability-Based Methods for Personalized Keyboard Generation." Multimodal Technologies and Interaction, 6, 67, 2022. PDF
Mitchell, C.M., Cler, G.J., Fager, S.K., Contessa, P., Roy, S.H., De Luca, G., Kline, J.C., & Vojtech, J.M. "Ability-based Keyboards for Augmentative and Alternative Communication." CHI Conference on Human Factors in Computing Systems Extended Abstracts, Article 412, 1–7, 2022. PDF
Kapsner-Smith, M.R., Díaz Cádiz, M.E., Vojtech, J.M., Buckley, D.P., Mehta, D.D., Hillman, R.E., Tracy, L.F., Noordzij, J.P., Eadie, T.L., & Stepp, C.E. "Clinical Cutoff Scores for Acoustic Indices of Vocal Hyperfunction that Combine Relative Fundamental Frequency and Cepstral Peak Prominence." Journal of Speech, Language, and Hearing Research, 65(4), 1349–69, 2022. PDF
Groll, M.D., Vojtech, J.M., Hablani, S., Mehta, D.D., Buckley, D.P., Noordzij, J.P., & Stepp, C.E. "Automated relative fundamental frequency algorithms for use with neck-surface accelerometer signals." Journal of Voice, 36(2), 156–169, 2022. PDF
Vojtech, J.M., Cilento, D.D., Luong, A.T., Noordzij, Jr., J.P., Diaz-Cadiz, M.C., Groll, M.D., Buckley, D.P., McKenna, V.S., Noordzij, J.P., & Stepp, C.E. "Acoustic identification of the voicing boundary during intervocalic offsets and onsets based on vocal fold vibratory measures." Applied Sciences, 11(9), 3816, 2021.
Vojtech, J.M., Chan, M.D., Shiwani, B., Roy, S.H., Heaton, J.T., Meltzner, G.S., Contessa, P., De Luca, G., Patel, R., & Kline, J.C. "Surface EMG-based recognition, synthesis and perception of prosodic subvocal speech." Journal of Speech, Language, and Hearing Research, 64(6S), 2134–53, 2021. PDF
Park, Y., Wang, F., Diaz-Cadiz, M., Vojtech, J.M., Groll, M.D., & Stepp, C.E. "Vocal fold kinematics and relative fundamental frequency as a function of obstruent type and speaker age." The Journal of the Acoustical Society of America, 149(4), 2189–99, 2021.
Groll, M.D., Hablani, S., Vojtech, J.M., & Stepp, C.E. "Cursor click modality in an accelerometer-based computer access device." IEEE Transactions on Neural Systems and Rehabilitation Engineering, 28(7), 1566–72, 2020. PDF
Vojtech, J.M., Hablani, S., Cler, G.J., & Stepp, C.E. "Integrated head-tilt and electromyographic cursor control." IEEE Transactions on Neural Systems and Rehabilitation Engineering, 28(6), 1442–51, 2019. PDF
Vojtech, J.M., Segina, R.K., Buckley, D.P., Kolin, K.R., Tardif, M.C., Noordzij, J.P., & Stepp, C.E. "Refining algorithmic estimation of relative fundamental frequency: Accounting for sample characteristics and fundamental frequency estimation method." The Journal of the Acoustical Society of America, 146(5), 3184, 2019. PDF
Cler, G.J., Kolin, K.R., Noordzij Jr., J.P., Vojtech, J.M., & Stepp, C.E. "Optimized and predictive phonemic interfaces for augmentative and alternative communication." Journal of Speech, Language, and Hearing Research, 62(7), 2065–81, 2019. PDF
Diaz-Cadiz, M., McKenna, V.S., Vojtech, J.M., & Stepp, C.E. "Adductory vocal fold kinematic trajectories during conventional speed versus high-speed videoendoscopy." Journal of Speech, Language, and Hearing Research, 62(6), 1687–1706, 2019. PDF
Vojtech, J.M., Noordzij Jr., J.P., Cler, G.J., & Stepp, C.E. "The effects of modulating fundamental frequency and speech rate on the intelligibility, communication efficiency, and perceived naturalness of synthetic speech." American Journal of Speech-Language Pathology, 28(2S), 875–86, 2019. PDF
Vojtech, J.M., Cler, G.J., & Stepp, C.E. "Prediction of optimal facial electromyographic sensor configurations for human-machine interface control." IEEE Transactions on Neural Systems and Rehabilitation Engineering, 26(8), 1566–76, 2018. PDF
Vojtech, J.M., Cano-Mejia, J., Dumont, M.F., Sze, R.W., & Fernandes, R. "Biofunctionalized Prussian Blue Nanoparticles for Multimodal Molecular Imaging Applications." Journal of Visualized Experiments, (98), e52621, 2015. Link

Featured Conference Presentations

Gill, A., Raiff, L., Kirchgessner, E., Stepp, C.E., Kline, J.C., & Vojtech, J.M. "Validation of an automated relative fundamental frequency analysis for clinical voice evaluation." 15th International Conference on Advances in Quantitative Laryngology, Voice and Speech Research, Phoenix, AZ, March 30–April 1, 2023.
Mitchell, C.M., Cler, G.J., Fager, S.K., Contessa, P., Roy, S.H., De Luca, G., Kline, J.C., & Vojtech, J.M. "Ability-based Keyboards for Augmentative and Alternative Communication." CHI Conference on Human Factors in Computing Systems Extended Abstracts, ACM, Article 412, 2022.
Vojtech, J.M., Hablani, S., Cler, G.J., & Stepp, C.E. "Integrated head-tilt & surface electromyographic cursor control for augmentative and alternative communication." Conference on Motor Speech, Santa Barbara, CA, February 19–23, 2020.
Vojtech, J.M., Noordzij Jr., J.P., Cler, G.J., & Stepp, C.E. "Effects of prosody on the intelligibility, communication efficiency, and perceived naturalness of synthetic speech in augmentative and alternative communication." Conference on Motor Speech, Savannah, GA, February 22–25, 2018.
Vojtech, J.M., Cler, G.J., Fager, S., & Stepp, C.E. "Predicting optimal surface electromyographic control of communication devices in individuals with motor speech disorders." Conference on Motor Speech, Savannah, GA, February 22–25, 2018.
Vojtech, J.M., Cler, G.J., Noordzij, Jr., J.P., & Stepp, C.E. "Evaluation of facial electromyographic sensor configuration for optimizing human-machine interface control." Boston Speech Motor Control Mini Symposium, Boston University, March 31, 2017.