There is a list of previously recorded hearth sounds that you can play, listen and visualize using the spectrogram and time domain graphical interface.
* Place the microphone directly against the skin, a good spot is the apex of your heart just below your left nipple.
* Place the microphone directly against the skin, a good spot is the apex of your heart just below your left nipple.
The quality or validity of the recorded sound is strictly limited to the performance of the built in microphone.
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