Early Hearing Detection by California State University, Fullerton, David Oh
The data is driven from CDC (Centers for Disease Control and Prevention) of new born babies each year who did not pass a screening test for hearing ability.
The color scheme is pastel pink and red to convey that it represents newborn babies. The year sequence wire shape is a subtle hint of the sound wave, while the actual data chart comes out of each year icon as somewhat like a speaker volume. I wanted to make the bar resemble the sound bar without looking too similar to its shapes that we often see on audio devices.