Cough is an important symptom to consider when diagnosing diseases. Hence, information about level as well as the rate of cough could be very useful for physicians. In this work, a cough monitoring system was designed. The designed system was capable of recording only cough sounds using appropriate circuit. The circuit utilizes a simple transducer (unidirectional microphone). An LED (light emitting diode) was caused to light every time a cough sound is detected. The design was also accompanied with a programmed alarm (using ATmega8535L) if the number of coughs exceeds certain number.
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Hassan et al. (2012) studied this question.
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