I recently finished my first TinyML project, which was about building a magic wand.
With Edge Impulse, I was able to build a machine learning model, which can distinguish between spells like “Lumos” and “Nox” and general noise. Because I really enjoyed this side project, I wrote a little article on my website on: https://jan-fiedler.net/tinyml-audio-recognition/
This may be helpful for anybody, who is also looking for an approach to TinyML audio recognition.
I ended up building a fully embedded wand. Check the article, if you would like to see it in action