[Documentation] Tear of Science

documentation
shdb17

(Hiroshi Matoba) #1

Tear of Scienece

It all started with the curiosity of how tears can make sound? We started to collect tears to make an experiment in our laboratory which we have two different size of drippers to examine tear drops. After building the laboratory, the experiment has started to capture the sound using piezzo sensors, arduino and speakers to sonify the tear drops. We recorded the sound and video to process via C++.

TEAM

MATERIALS

HOW WE BUILT IT

  1. Make funnel holder with acrylic plate
  2. Connect piezo to Arduino’s analogue input (find circuit diagram on google)
  3. Compile and upload “Firmata Standard” program to Arduino
  4. Write code and run openFrameworks app (see Firmata Example and just convert piezo signal to MIDI)
  5. Run music software which receive MIDI signal from openFrameworks app.
  6. Try different sounds!

PROBLEM

  • Sometimes our piezo works perfectly but most of the time not.
  • Water could be annoying for long run installation
  • We tested microphone + onset detection algorithm. But it doesn’t work in loud noise condition (as expected :sweat_smile:)

NEXT ITERATIONS

  • try another piezo sensors
  • try IRLED sensors
  • try glass heating bed so that water evaporate immidiately
  • put a LCD display under funnels and visualize water drop
  • try different oils, color water, fake blood, etc