ACOUSTIC COMPONENT IDENTIFICATION FOR RESPIRATORY THERAPY SYSTEMS

The present invention relates to a method in a processor associated with a respiratory therapy device for identifying a component of an airpath coupled to the respiratory therapy device, the method comprising: processing a sound signal representing a sound in the airpath to obtain a spectrum; separating an acoustic signature from the spectrum; and comparing the acoustic signature to a set of predetermined acoustic signatures corresponding to respective components. The method further comprises identifying the component based on the comparison of the acoustic signature to the set. The processing comprises flattening a spectrum of the sound signal; and/or the method further comprises repeating the processing and separating at least once to generate multiple acoustic . signatures, and combining the multiple acoustic signatures into a combined acoustic signature, wherein the comparing compares the combined acoustic signature with the set of predetermined acoustic signatures.