Question/FR: using manim for generating audio visualizations?

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## Description of proposed feature
To be able to generate shapes based on the current in time parameter of the audio, mb eventually adding support for `.milk` configs for visualizations

## How can the new feature be used?
If you're familiar with `projectm` or winamp/windows media player - you should see those before

## Additional comments
projectm or other currently existing opensource solutions not allowing to render visualizations to file, but only to play them in real-time (so screen-capture should be used), i thought that using manim as a base might solve this usecase for me

the most basic example of audio-visualizations, would be a simple db/lufs-meter or oscilloscope:


more complicated, smth like this:


No files, tests, or entry points are identified in the issue, so begin by reviewing the project's existing rendering and media-related documentation and architecture. Done would mean a defined approach for audio-reactive visualizations that can render to a file, with the scope of optional .milk configuration support clarified.

Written by the indexing model from the issue text.