Googling "audio visualizer SwiftUI" gives me these as the first, fourth, and seventh results:
https://medium.com/swlh/swiftui-create-a-sound-visualizer-ca... https://audiokitpro.com/audiovisualizertutorial/ https://developer.apple.com/documentation/accelerate/visuali...
I do tend to reach for GPT4 before Google for things like this now, but I feel like it should definitely be possible to get this up in only slightly longer with just Google, even if you want some mods.