Methods and apparatus for performing dynamic respiratory classification and tracking

A computer-readable storage medium having stored thereon, computer executable instructions that, if executed by a computer system cause the computer system to perform a method for detecting thresholds in a breathing session, said method comprising:

• recording breathing sounds of a subject using a microphone;
• processing said breathing sounds to generate an audio respiratory signal;
• recognizing a plurality of breath cycles from said audio respiratory signal;
• extracting metrics related to a breath intensity and a breath rate from said plurality of breath cycles;
• producing a plurality of vectors using said metrics related to said breath intensity and said breath rate;
• calculating a master vector by summing said plurality of vectors and assigning each value in said master vector with a weighting coefficient;
• and
• determining said thresholds using peak values in said master vector.

An apparatus for detecting thresholds in a breathing session, said apparatus comprising:

• a microphone for capturing breathing sounds of a subject;
• a memory comprising an application for determining ventilatory thresholds from a breathing session stored therein;
• and
• a processor coupled to said memory and said microphone, the processor being configured to operate in accordance with said application to:
• record breathing sounds of a subject using a microphone;
• process said breathing sounds to generate an audio respiratory signal;
• recognize a plurality of breath cycles from said audio respiratory signal;
• extract metrics related to a breath intensity and a breath rate from said plurality of breath cycles;
• produce a plurality of vectors using said metrics related to said breath intensity and said breath rate;
• calculate a master vector by summing said plurality of vectors and assigning each value in said master vector with a weighting coefficient;
• and
• determine said thresholds using peak values in said master vector.