If you've ever used a personal digital assistant like Alexa, Cortana, Google Now or Siri, then you're familiar with voice search, a technology that uses speech recognition and allows a user to speak a search query into a device. Results are returned in a device-optimized format on a screen, or as audio results vocalized by the personal digital assistant. People tend to interface with voice technology differently than how they approach interactions using keyboards, and even when results are presented outside of a web browser, many of the results retrieved come from the world wide web.
