Intangible Interaction Among Us
w/ Seeha Park
Jan 23rd, 2026
1) Observation
In the case of sound-reactive light, we use implicit interaction design framework to analyze the system.
reactive to motion
common error: duration of light depends on motion rather than presence
→ light will turn off even when present
vs. sound
common error: detection of sound through volume(decibels)
→ difficulty differentiating between human and non-human sounds, and light will turn off even when present
2) Research:Â
Motion:
Instruction Manual: WIRELESS 3 IN 1 LED NIGHT LIGHT
ㄴ mostly listed as “motion sensor” without any specifications
ă„´ most likely to be proximity sensor, such as ToF
Sound:
ă„´ High Pass Filter Frequency
ă„´ Audio Input Signal Gain
3) Ideation
stage/performance design such as haunted house
By programing a delay between interaction and reaction, either reacting to motion or sound, one can create a horror ambience.