"learn from other humans." "learn from an LLM who learned from other humans" I feel like ChatGPT plus voice input (speech to text) plus voice output at differ

"learn from other humans." "learn from an LLM who learned from other humans" I feel like ChatGPT plus voice input (speech to text) plus voice output at different playback speeds (text to speech) would be a fine way to learn some English. Maybe it shouldn't be the only method one uses, but I think it is a useful method. So why not for other languages? I'd love to use a Japanese LLM with voice capability. It could even write stories for me that I could read and listen to.