Planetary Video • SciTech

LightSound solar eclipse simulation

This content is hosted by a third party (, which uses marketing cookies. Please accept marketing cookies to watch this video.

A device called LightSound allows people with blindness and low vision to experience a total solar eclipse. LightSound is a small box that converts light levels into sound through a process called sonification. A light sensor records the level of the light, and outputs a sound through an audio jack that can be connected to headphones or a speaker. When the Sun is unobstructed, LightSound emits a high-pitched tone. As the Moon covers the Sun, the tone decreases, ending at a series of clicks when the Sun is blocked completely. As the Moon slides off the Sun, the tone gradually increases back to the original pitch. Video credit: Paulina Troncoso Iribarren