Thank you for asking and we're sorry for the delay response.
For us to help you, can you please tell us more regarding your concern about language? Are you referring to a product/program default language settings?
Can you please let me know which software are you talking about? Is it a reviversoft product or any other product. We need the name to help you resolve the issue.
When I connect an external microphone to the jack, it is not working. I can see it in the "Sound" tab, but the levels is very low. I have tried with several microphones.