Thanks for reaching out to us, this is an English only forum to avoid translation misunderstanding. Please correct me if there is any incorrect translation.
I would like to suggest you check on the locale first. May I know if you are working on zh-TW locale as below?
zh-TW
Chinese (Taiwanese Mandarin, Traditional)zh-TW-HsiaoChenNeural
(Female) zh-TW-YunJheNeural
(Male) zh-TW-HsiaoYuNeural
(Female)
If yes but you still feel the pronunciation is not correct, could you please share the current pronunciation?
If you can share the code sample you are working on, it will be more helpful.
I hope this helps!
Regards,
Yutong