Hi @macor
I suppose that by frequency you mean audio frequency?
There are 3 filters that can display a visualization of the audio signal:
- Audio Level Visualization
- Audio Spectrum Visualization
- Audio Waveform Visualization
Put your motionless image on a video track
Put your audio clip on a video track above your image.
Apply one of the 3 filters to the audio clip.
In the video below, I show only a small sample of what these filters can do. Each one has tons of settings that allows to change the look and type of visualization.