To win a Hyper X Quad Cast microphone, participants must extract topics from their favorite interview using either Node.js or Postman and Symbl.ai's APIs. The challenge requires an audio or video file, Node.js or Postman, and a Symbl.ai account, which can be created for free. Participants must process the file using one of two options: using Node.js with a .mp3 file or Postman with a .mp4 file. Once completed, they must tweet a screenshot of their generated topics to @symbldotai or post on LinkedIn tagging Symbl.ai, using specific hashtags by Saturday, April 30 to qualify for the giveaway. The winner will be randomly selected on Monday, May 2.