SONOGRAM

https://github.com/Christoph-Lauer/Sonogram

Here an interesting software by Christoph Lauer https://christoph-lauer.github.io/ to create SONOGRAMS (or spectrograms).
I have been experimenting with it recently, so I am not yet able to fully evaluate all the various functions, so I reserve me to do it as soon as possible. Among the various features, this software also allows you to create 3D sonograms, very effective if used in a video presentation and to be able to appreciate multiple parameters at the same time.
Here a Video tutorial https://www.youtube.com/watch?v=f-4RyKO-Gow made by the author.