by Miha Marinko·Motion Graphics
Images © Miha Marinko. Used for product review; image policy.
Sound Nodes earns its place in the Blender library for tying audio analysis directly to Geometry Nodes, letting keyframed loudness, frequency and pitch data drive animation.
Sound Nodes - Audio Visualization is a Blender add-on for turning music into animation. Load a music file, click Analyze Audio, and the add-on detects the features in the track, storing the relevant information as keyframes for preview performance. It supports .mp3, .wav, .flac, and .ogg files.
The extracted audio data connects to custom nodes in Blender's Geometry Nodes editor. A Sound Info node holds basic information including Loudness, Average Frequency, and Beats. Spectrogram nodes visualize frequencies in the audio, while the Chromagram node provides the energy of musical pitches. From there, Geometry Nodes handle the visuals you build.
Three demo project files are included, and documentation is available within the add-on. A free lite version with limited functionality, including loudness and spectrogram information, can be downloaded from GitHub to test installation before moving to the full version.
Sound Nodes - Audio Visualization is best for blender artists building audio-driven animation with Geometry Nodes.
Sound Nodes - Audio Visualization is completely free to download and use.
Sound Nodes lists support for Blender 3.6 through 4.5, so recent 4.x releases are covered. It is provided as an add-on and marked Blender Extension compatible, licensed under GPL. Once installed, it works inside the Geometry Nodes editor, where its custom nodes connect to the audio data it extracts. For exact behaviour on a specific point release within that range, check the developer's page and the documentation included with the add-on.
Sound Nodes supports several popular audio formats, including .mp3, .wav, .flac, and .ogg. To use one, load your music file and click Analyze Audio, which detects the features in the track. The extracted information is stored as keyframes for preview performance, then made available through the add-on's custom nodes. If you need to confirm handling of a particular file, the documentation included with Sound Nodes covers the analysis workflow in more detail.
Sound Nodes provides several nodes for working with audio data. The Sound Info node contains basic information including Loudness, Average Frequency, and Beats. Spectrogram nodes let you visualize frequencies in the audio, and the Chromagram node provides the energy of musical pitches. These nodes live in the Geometry Nodes editor, where you connect the data to build your own visuals. More detail on each node is available in the documentation included with the add-on.
Sound Nodes offers a free lite version with limited functionality that still includes the basic features, specifically loudness and spectrogram information. It can be downloaded from GitHub and gives you a way to test installation and decide whether the add-on suits your work before moving to the full version. This catalog lists Sound Nodes as free; for current licensing and the differences between the lite and full versions, check the developer's page.
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