Drop an audio file and see its acoustic spectrum!
This project is heavily inspired by spek!
This is a small audio spectrum analyzer that I made after I realized that spek is no longer actively maintained. I also wondered if it was possible to make it more performant and portable. To get both performance and cross-platform compatibility this has become a PWA and is using the browsers native audio API (which is fast!). Unfortunately not all browsers support things like the OfflineAudioContext I need, therefore it only works on Chromium-based browsers.
I'd say, pick any audio file and try it out :)