| 摘要 |
<p>In order to distinguish between a breathing phase and a non-breathing phase, it comprises steps consisting, for each stethoscope signal sample, of: - filtering (71 ) the stethoscope signal in order to eliminate the stethoscope signal's low frequencies, with the cutoff frequency preferentially being 500 Hz. - calculating (72) an energy value Eh for each sample of the filtered signal, - calculating (73) the mean energy Eh_moy of the filtered signal, - then making a decision (74), Breathing or Non-Breathing, based on the value of the difference Eh - Eh_moy for that sample.</p> |
