How I can create a Real Time Spectrogram Heatmap

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Hello, hope someone can help me with this.

I need to recreate an Audio Spectrogram Heatmap that works with metasounds in real time.

I tried several different ways to recreate this, using the render target with a constant qrt was the closest but heavily dropped fps, and was no near the look I’m looking for either.

Is there another way to recreate this?; I saw an spectrogram analyzer on metasounds ui, is there a way I can link it to a widget?

If anyone has some idea on how I can get this done it will be more than appreciated.

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Hey there @ignaciorojas2112! Welcome to the community! You mention there being a need for this to be realtime, would it be possible to preprocess the sounds? If you were to render it to a texture ahead of time and manipulate it with materials, the calculations would be GPU side and less of a problem, but the original processing is going to always be a bit performance intensive.