Abstract: A method for detecting thresholds in a breathing session is disclosed. The method comprises recording breathing sounds of a subject using a microphone. The method further comprises processing the breathing sounds to generate an audio respiratory signal and recognizing a plurality of breath cycles from the audio respiratory signal. Additionally, the method comprises extracting metrics related to a breath intensity and a breath rate from the plurality of breath cycles and producing a plurality of vectors using the metrics related to the breath intensity and the breath rate. Further, the method comprises calculating a master vector by summing the plurality of vectors and assigning each value in the master vector with a weighting coefficient and determining the thresholds using peak values in said master vector.

Abstract: An apparatus and method for determining a ventilator threshold (VT) and respiratory compensation threshold (RCT) is disclosed. The method comprises measuring breathing patterns of a user. It also comprises measuring a heart rate of the user. Finally, it comprises determining a VT and a RCT for the user based on an analysis of the breathing patterns and the heart rate.