Please be aware, this project uses an XMLHttpRequest() to load the music files. Therefore, the index.html file necessarily needs to run on a server, either locally or online.
Check it out in action!: http://dominikhofacker.me/audiovisualization/
Check out the project on behance to find out more: https://www.behance.net/gallery/49260123/Web-Audio-Visualization
YouTube: https://youtu.be/PjaiWsNRHxE
This project contains a sample music file from Valence (NCS Release). Make sure to support his music. https://soundcloud.com/valence-music https://twitter.com/miguel_valence_ https://www.facebook.com/ValenceMusicOfficial/ https://www.youtube.com/watch?v=QHoqD47gQG8