That’s what Jordan Wirfs-Brock, an information science Ph.D. student at the University of Boulder Colorado, set out to accomplish. She decided to use sonification — the practice of conveying information through sounds — to create a new way to “graph” the stock market. The result, which you can listen to in a short interview with Wirfs-Brock here, is a 12-second clip of sound that represents the state of the Dow Jones Industrial Average from Jan. 2 to March 27, 2020.
Each second contains five days’ worth of sounds, with the pitch going up or down depending on the volatility and the final closing price for each day. A high pitch represents a high volatility and a high closing price, while a low pitch represents a low volatility and a low closing price. As you can imagine, things sound pretty steady until about the end of February and beginning of March when the COVID-19 pandemic began to ramp up. From there, however, things start to sound really crazy.