SEGMENTED HEART SOUNDS - S1, S2 PEAKS
In this step, the filtered heart sound signal is further analyzed by marking and segmenting key components, specifically the S1 and S2 heart sounds. The filtered audio is plotted over time, and the identified peak locations (representing S1 and S2 sounds) are highlighted with red circles for clarity. These peaks are marked using the coordinates derived from the previous peak detection process, allowing us to visually pinpoint the occurrence of the S1 and S2 sounds within the heart cycle. The labeled peaks provide critical insight into the timing and structure of heart sounds, aiding in the segmentation of the signal into individual heartbeats. This segmentation is essential for further analysis, such as determining the intervals between heart sounds or detecting abnormal heart patterns like murmurs.
MATLAB CODE
WAVEFORM
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