Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
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Zhongguo Yi Liao Qi Xie Za Zhi · Jan 2015
[Primary study of respiratory monitoring based on breath sounds].
It is nonlinear relationship between breath sounds and respiratory flow rate, thus breath sounds might be a new solution for respiratory monitoring. The envelope of the breath sounds was created firstly. ⋯ Finally, using these parameters estimated respiratory flow rate was achieved by the logarithm of envelope with 14.9% error. Therefore, respiratory flow rate estimation and respiration monitoring based on breath sounds are feasible.