Abstract
Introduction: In aviation medicine, acute hypoxia, referred to as the “silent killer” because of its insidious character, is a serious hazard. When the first symptoms of hypoxia are noticed, cognitive functioning is already impaired, thus compromising remedial action. In earlier voice-stress studies conducted at the Concordia Station in Antarctica, a promising set of acoustic phonetic speech parameters for chronic hypoxia detection was identified. Based on these findings, we examined the feasibility to detect acute hypoxia by speech voice-stress analysis at a pre-symptomatic stage in operational environments.
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