## 5 Conclusions  
This study evaluated methods for subglottal pressure estimation based on neck-surface vibration signals. The method exhibiting the lowest error consisted of a person-specific calibration task (repetitions of /p/-vowel syllables at multiple loudness levels) that enabled the training of a multiple regression model that predicted subglottal pressure using a linear combination of vocal function measures. The model was then applied to daylong data collected from vocally typical speakers and patients with phonotraumatic vocal fold lesions, primary muscle tension dysphonia, and unilateral vocal fold paralysis. Ambulatory estimates of subglottal pressure were reported for the first time to obtain a window into the aerodynamics exhibited by individuals during their daily life activities. Future work could investigate the changes in subglottal pressure patterns during the clinical management of an individual's voice disorder (e.g., following laryngeal surgery or voice therapy sessions), as well as to characterize any sex-based difference during the estimation of subglottal pressure. Conceptualization, D.D.M. ; data curation, J.P.C., J.Z.L. and K.L.M. ; formal analysis, J.P.C. and J.Z.L. ; funding acquisition, D.D.M., M.Z. and R.E.H. ; investigation, J.P.C., J.Z.L., K.L.M., E.J.I. and D.D.M. ; methodology, D.D.M. ; project administration, D.D.M. ; resources, R.E.H. and D.D.M. ; software, J.P.C., J.Z.L., E.J.I. and D.D.M. ; supervision, D.D.M. ; validation, J.P.C. ; visualization, J.P.C., J.Z.L. and D.D.M. ; writing--original draft preparation, J.P.C. and D.D.M. ; writing--review and editing, K.L.M., V.M.E., M.Z. and R.E.H. All authors have read and agreed to the published version of the manuscript. This research was funded by the Voice Health Institute, the U.S. National Institutes of Health (NIH), National Institute on Deafness and Other Communication Disorders (Grants R21 DC015877 and R01 DC019083 awarded to D.D.M. and P50 DC015446 awarded to R.E.H. ), Chilean Research and Development Agency (ANID) (Grants FONDECYT 11200665 awarded to V.M.E., BASAL FB0008 awarded to M.Z., and Beca de Doctorado Nacional 21190074 awarded to E.J.I. ), UTSFM grant DPP PIIC N\({}^{\circ}\) 009/2022 awarded to E.J.I. The APC was funded by the U.S. National Institutes of Health (NIH) National Institute on Deafness and Other Communication Disorders (Grant R21 DC015877 awarded to D.D.M.). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the Institutional Review Board of Massachusetts General Brigham (protocol number 2016P002544, annual approval obtained on 23 December 2021). Informed Consent Statement:Informed consent was obtained from all subjects involved in the study. Data Availability Statement:Mass General Brigham and Mass General are not allowed to give access to data without the Principal Investigator (PI) for the human studies protocol first submitting a protocol amendment to request permission to share the data with a specific collaborator on a case-by-case basis. This policy is based on very strict rules dealing with the protection of patient data and information. Anyone wishing to request access to the data must first contact Ms. [PERSON], Program Coordinator for Research and Clinical Speech-Language Pathology, Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital: [EMAIL_ADDRESS]. **Acknowledgments:** We thank laryngologists [PERSON] and [PERSON] whose patients were enrolled in the study. **Conflicts of Interest:** Drs. [PERSON] and [PERSON] have a financial interest in InnoVoyce LLC, a company focused on developing and commercializing technologies for the prevention, diagnosis and treatment of voice-related disorders. Drs.