That is an interesting plugin – seems like a lot of complexity to do something that is mostly already supported in UE4 via the Audio Synesthesia plugin and many native features – e.g. getting Audio Envelope data and FFT data is something that is supported out of the box in UE Audio Components and Submixes. Audio Synesthesia supports more complex analysis (Non-realtime so it’s performant). For UE5, we’re adding more robust real-time analysis for Audio Synesthesia as well.
If you google UE4 Audio Synethesia you’ll find lots of docs and tons of examples of stuff people are doing – no 3rd party plugin needed!
E.g.
Livestream where we talk about it here:
