Welcome to Sounds of Innovation, an intermittent feature of our Voices from DARPA podcast. Rather than hearing the voices of program managers, which is normally what you get in a Voices from DARPA podcast, in each Sounds of Innovation episode, you will hear some of the soundscapes of research and development … and learn just a little bit about the world-changing capabilities those sounds could lead to. See if you can guess how the sounds were produced before our podcast host reveals their origin.