Abstract
A fast, simple, and reliable method and apparatus for recording cough sounds for diagnosing pulmonary disorders and diseases is provided. This method uses signal analysis techniques to extract quantitative information from recorded cough sound pressure waves. The generated data can be used to diagnose pulmonary disorders and diseases as well as track the effectiveness of treatment regimes over time. The method can also be used to quickly and reliably screen individuals at risk of pulmonary disorders and diseases. A system according to one embodiment includes a mouthpiece connected to the proximal end of a tube. The distal end of the tube is connected to a flexible tube. A microphone is attached to the tube between the distal and proximal ends therof for recording sound pressure waves. A calculated cough sound index (CSI) can be used in diagnostic applications.
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