You can turn your video from YouTube, Facebook, Twitch, etc and easily convert it to an audio file using Audacity (free) software. I show you how to do this in this video.
Dave Jackson began podcasting in 2005 and launched the School of Podcasting. His School of Podcasting show has over 2.7 million downloads. He has helped hundreds of people plan, launch and grow their podcast. He is the author of the book More Podcast Money, and is a featured speaker at events. In 2016 Dave joined Libsyn (the largest podcast hosting company) as part of their tech support team. In 2018 he was inducted into the Academy of Podcasters Hall of Fame.