Wavesurfer.js - https://www.youtube.com/watch?v=fZooJHSFpzg - https://wavesurfer-js.org/example/playlist/index.html - https://wavesurfer-js.org/example/rounded-bars/index.html - https://wavesurfer-js.org/example/timeline/index.html Audo Visualizer - https://www.youtube.com/watch?v=24JFvG50zkc
