Javascript help me with my accent

I built the site Mati which shows one sentence a day; the goal is to repeat the sentence and get feedback. TLDR Cloud Text-to-Speech offers natural voices, way better than the boring robotic voices browsers have by default. Google offers a free tier which is enough for experimenting with the service. Speech-to-Text while not new, now most browsers add an LLM layer which tries to understand what was said, making for better transcripts.