Audio has been around since, I suppose, the spoken language. The difference now is distribution and availability. Audiobooks, podcasts, smart phones, voice controlled home speaker systems, connected cars, and who knows what will come next.
There are so many podcasts to be a guest on! How do you choose which ones are a good fit? Introducing Listen Notes. https://youtu.be/DFHEJDMktUk
StoryOrigin is such a feature-rich source for authors and now there's support for audiobook reviews, too. Here's the video version just for kicks: https://youtu.be/iCoNIiSDW8k...
When I first opened the Audacity program I have to admit I was intimidated.