Adjust the vizualizer settings below. The video on the left is an example of the default settings. Make sure Realtime is set to No if you want to download a video.
Upload an audio file. The vizualisation will begin to render automatically. Once it finishes you will be able to download the video as webm.
Sync the audio to the vizualiser using the video editor of choice. If your system does not support webm you can convert it to a mp4 online.