The use of active echolocation is growing in popularity as a perceptual mobility tool for the blind and visually impaired. As more scientific research is compiled the skepticism around the skill is slowly fading away and making way for accelerated development and implementation of this unique tool.

Echolocation is a fundamentally simple skill that many blind people use daily to navigate and understand their environment on a broad scale. With proper implementation, however it can be used to identify precise distance, sizes, shapes, edges and even the density of surrounding objects. This...