heart-beats
Table of Contents
heart sounds
my goal is not to provide physiologically correct haptics of a heart beat but the aesthetics of being connected to another human by sensing their heart.
You will have to reload the page to try a new vibration pattern. Phone only unless you know what you do and hack into the browser vibrate api.
this helped me quite a bit https://www.youtube.com/watch?v=zNHI-l_c-ls
- I decide to not care about s3 and s4 for the moment.
- S1 is the dub, closing of the valves between atria and ventricles at the end of the diastole tricuspid valves
- Systole: contraction 300ms
with 75 bpm 800ms for 1 cycle
- S2, the lub
- closing the semilunar valves is S2 the valves between the ventricels and downstream of the heart pulmanory trunk and aorta
- Diastole: heart relaxes, the long part between sounds
500ms
phonocardiogram
- lets say the ratio between systole and diastole is 3/5.
- I pretend and make a vibration that sort of follows the sounds
idea 1:
- make the systole sound, the dub have a longer vibration because it simulates forcefully ejecting the blood into the body
- make another, short
- Lub, a short vibration, then dub a longer vibration
- making the systole 300ms
- with 200ms "pump" vibrate
variant
slower diastole
faster diastole
From those I decide that "slower diastole" felt the most sensual so I start going further with this.
heart rate variability
A healthy heart is not a metronome. The oscillations of a healthy heart are complex and constantly changing, which allow the cardiovascular system to rapidly adjust to sudden physical and psychological challenges to homeostasis.
ok stuff gets quite chaotic there.