Is acoustic analysis of snoring an alternative to sleep nasendoscopy?
- 1 June 2004
- journal article
- Published by Wiley in Clinical Otolaryngology
- Vol. 29 (3), 242-246
- https://doi.org/10.1111/j.1365-2273.2004.00800.x
Abstract
Previous studies have suggested that acoustic analysis may be useful in distinguishing different types of snoring prior to possible corrective surgery. This study aimed to establish whether it could replace sleep nasendoscopy in a clinical setting. Thirty-five patients undergoing sleep nasendoscopy had their snoring recorded and analysed using commercially available equipment. It was found that centre frequency can be used to distinguish pure palatal from tongue base snoring, with a clear cut-off value of 90 Hz between the two. Multisegmental snoring cannot be identified on the basis of centre frequency alone. It may be distinguished from tongue base, but not palatal snoring by the nature of the frequency distribution plot (sensitivity 77%, specificity 81%). Blinded assessment of waveforms of individual snores gave poor accuracy (53%) and poor interobserver agreement (kappa = 0.10). Acoustic analysis may help screen for pure tongue base snoring. However, we feel that it is unlikely to replace sleep nasendoscopy.Keywords
This publication has 7 references indexed in Scilit:
- Sound frequency analysis and the site of snoring in natural and induced sleepClinical Otolaryngology, 2002
- A new acoustic method of differentiating palatal from non-palatal snoringClinical Otolaryngology, 1999
- Acoustic Analysis of Snoring and the Site of Airway Obstruction in Sleep Related Respiratory DisordersActa Oto-Laryngologica, 1998
- Suitability of minidisc (MD) recordingsfor voice perturbation analysisJournal of Voice, 1998
- Observation of the mechanism of snoring using sleep nasendoscopyClinical Otolaryngology, 1995
- A grading system for patients with obstructive sleep apnoea ? based on sleep nasendoscopyClinical Otolaryngology, 1993
- Sleep nasendoscopy: a technique of assessment in snoring and obstructive sleep apnoeaClinical Otolaryngology, 1991