Nice work @Rufan_Khokhar !
I read your article. I think you can explain a little bit more about the library FFmpegKit…provide some links for the user so they can decide to use it or not. The issue with custom libraries is that someday the authors stop supporting them and they do not work with future android APIs.
I see that you are using TensorFlow AudioClassifier… Have you tried directly the conversion 7 the library provides?
Best