Time-frequency analysis of snoring sounds in patients with simple snoring and OSAS

In recent years variety of studies has been conducted towards the identification of correlation between obstructive sleep apnea syndrome (OSAS) and snoring. The features detected from time and frequency domain analysis of snores showed the differences between simple and OSAS patients. In this study the total episodes of 1500 snore records taken from 7 simple and 14 OSAS patients were evaluated through time-frequency analysis. From the time-frequency analysis the differences, particularly from the spectral bandwidth point of view, between the two groups were identified, and using this data the method was suggested as a cost effective and simple technique to be widely used in detection of OSAS from simple patients.