Method and apparatus to characterize the inhalation noise, parameters are calculated on the basis of the characterization

摘要

A method for characterizing inhalation noise within a pressurized air delivery system, the method including the steps of: generating an inhalation noise model ( 912, 1012 ) based on inhalation noise; receiving an input signal ( 802 ) that includes inhalation noise comprising at least one inhalation noise burst; comparing ( 810 ) the input signal to the noise model to obtain a similarity measure; comparing the similarity measure to at least one threshold ( 832, 834 ) to detect the at least one inhalation noise burst; and characterizing ( 1354, 1356 ) the at least one detected inhalation noise burst.