Only for Blender 4.1 and up.

blender_music_visualizer

audio spectrum visualization in Blender using Geometry Nodes

installation

Edit -> Preference -> Addon (select on the left side bar) -> Install (on the top) select the .zip file to install, after installation, enable it by checking the checkbox. Go to the viewport, press N key to open side panel, you will find the addon at the bottom, now you can explore it to use.

The addon relies on the Blender shipped addon Power Sequencer, you also need to enable it.

usage

It's pretty simple and straightforward to use. Overall, all there are two parts.

1. Music SpectrumIt generates the audio spectrum and adjustable settings are ready to go. Just select the audio/music you would like to visualize, then press the new spectrum button, it is just this simple. By the way, video file is also supported, but only the audio get used. Once you select an audio, you will find the addon panel having an extra part called Sequence Settings, you can sync the timeline to the track or channel, also deleting a track from the Video Sequence is on power. It is so convenient that I love this function, you don't need to go to Video Sequence to play with the audio file, this is very useful and time saving for me.
2. VisualizerYou can just use the original spectrum data (the z location) to visualize your stuff. I also give a preset visualizer which is basic but very nice to go. I would suggest the way to go is using Geometry Nodes, which is easy, quick and powerful. I will post some toturials to show some examples.

Be aware

• When you change something, you may need to change the frame to see the effect.
• For the top Deco instancing part, when you choose collection, remember to check Pick Instance to separate all the objects in the collection.
• Don't change the mesh name and the modifier name, but you can change the object name and the node group name.

Tutorial

If you need more information and knowledge about my addon, you can check my tutorial on YouTube.

More on my Github

westNeighbor/blender_music_visualizer: audio spectrum visualization in Blender using Geometry Nodes (github.com)