References
Fiz JA, Morera J, Abad J, Belsunces A, Haro M, Fiz JI, Jane R, Caminal P, Rodenstein D (1993) Acoustic analysis of vowel emission in obstructive sleep apnea. Chest 104(4):1093–1096. https://doi.org/10.1378/chest.104.4.1093
Wei M, Du J, Wang X, Lu H, Wang W, Lin P (2020) Voice disorders in severe obstructive sleep apnea patients and comparison of two acoustic analysis software programs: MDVP and Praat. Sleep Breath. https://doi.org/10.1007/s11325-020-02102-4
Montero Benavides A, Blanco Murillo JL, Fernández Pozo R, Espinoza Cuadros F, Torre Toledano D, Alcázar-Ramírez JD, Hernández Gómez LA (2016) Formant frequencies and bandwidths in relation to clinical variables in an obstructive sleep apnea population. J Voice 30(1):21–29. https://doi.org/10.1016/j.jvoice.2015.01.006
Uloza V, Padervinskis E, Vegiene A, Pribuisiene R, Saferis V, Vaiciukynas E, Gelzinis A, Verikas A (2015) Exploring the feasibility of smart phone microphone for measurement of acoustic voice parameters and voice pathology screening. Eur Arch Otorhinolaryngol 272(11):3391–3399. https://doi.org/10.1007/s00405-015-3708-4
Narayan S, Shivdare P, Niranjan T, Williams K, Freudman J, Sehra R (2019) Noncontact identification of sleep-disturbed breathing from smartphone-recorded sounds validated by polysomnography. Sleep Breath 23(1):269–279. https://doi.org/10.1007/s11325-018-1695-6
Author information
Authors and Affiliations
Contributions
L.Z.M. and E.G.P. design of the work; L.H.B. for the acquisition and interpretation of data. E.G.P. drafted the work; L.Z.M. and L.H.B. revised it critically for important intellectual content. All authors approved the version to be published and agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no conflict of interest.
Additional information
Publisher’s note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Zamora-Molina, L., Hernandez-Blasco, L. & Garcia-Pachon, E. Acoustic analysis of vowels in patients with sleep apnea syndrome in sitting and supine positions . Sleep Breath 25, 2107–2108 (2021). https://doi.org/10.1007/s11325-021-02304-4
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11325-021-02304-4