For example a callbot that would have a conversation with you, and determine if what you say make sense and if your accent isn't horrendous.
Do you think state of the art AI could be able to solve this problem? or is it way too early for that?
Have you heard of anyone attempting this?
For someone who is intending to build a pronunciation checker, I would start with the words and their International Phonetic Alphabet (IPA) equivalent. With today's text-to-speech technology and machine learning algorithms, going from voice to IPA and vice versa should be quick.
Once you have that for words, you could build on it to add evaluation of vocabulary, grammar, sentences etc., A lot of it is around assembling the data and collating training data sets, imo.
Cool project!
As a native english speaker, I don't have a use for it but I would love to see something similar in other languages.