Acoustic OSA Prediction During Wakefulness and Monitoring During Sleep

The purpose of this study is to investigate the feasibility of sound analysis for: a) sleep apnea detection both during wakefulness and sleep, and b) flow-sound relationship during both wakefulness and sleep in patients and control individuals. The ultimate goal of our research is to simplify the current assessments for sleep apnea detection so that it is more convenient for patients and also much faster than the current techniques.

Inclusion Criteria: * 1\) age between 18 to 70 years. * 2\) suspected of OSA and referred to full PSG study by a doctor. Exclusion Criteria: * 1\) being diagnosed with a chronic respiratory disease including pulmonary fibrosis, emphysema, respiratory infectious disease, nocturnal asthma, obstructive pulmonary lung disease, pulmonary hypertension, congestive heart failure, sleep related hypoventilation and neuromuscular disorders. * 2\) having insomnia or restless leg. * 3\) drug addiction. * 4\) under the current, direct supervision of the PI of this study.