A new acoustic method of differentiating palatal from non-palatal snoring.
Palatal snoring produces explosive peaks of sound at very low frequency (approximately 20 Hz). Using a digital sound trace a ratio of peak amplitude to root mean square amplitude can be calculated. This Peak Factor Ratio is significantly higher for palatal snores than non-palatal snores (P < 0.01). This acoustic method will be useful for selecting patients for palatal surgery as it is non-invasive and could be used in a home monitor.
Osborne
J E
JE
Department of Otolaryngology, Glan Clwyd Hospital, Denbighshire, UK.
Osman
E Z
EZ
Hill
P D
PD
Lee
B V
BV
Sparkes
C
C
D000162:Acoustics; D004724:Endoscopy; D006801:Humans; D007013:Hypopharynx / Q000503:physiopathology; D010160:Palate, Soft / Q000503:physiopathology*; D012913:Snoring / Q000175:diagnosis*; D013018:Sound Spectrography; D014059:Tongue / Q000503:physiopathology