The development of a portable breath sounds analysis system

This paper introduced a new portable breath sounds analysis system. A single-chip micro controller (8097BH) is ultilized to sample and process the singnals. This system can provide the information about breath sounds both in time domain and in frequency domain. It also gives the information about the breath flow, flow rate, breath time. It may be used in experimental studies and clinical situation both as a diagnostic tool and in patient monitoring.