Start by looking through the forum for posts on similar topics. Capturing audio, playing audio, storing audio, etc are all topics that show up pretty regularly. Hereās one thread about playing audio: Simple Audio Player - #5 by robert
Then create a small proof of concept, and if it doesnāt work, let us know whatās happening and someone will probably be able to help you fix it.
Focus on one technical issue at a time, too, rather than trying to write your entire app all at once.
Edit: Hereās the Anvil docs section on integrating third-party Javascript libraries: Anvil Docs | JavaScript