Can source audio be in high quality (ie 44100hz)?

[bzp83]

Hi,
I trained my own voice with RVC but RVC requires the input audio to be at 16000hz and when I convert some of the audios I want to convert, it loses some details and the end audio has pronunciation problems.

Could someone tell me if this project has the same problem?

I just need to know if I can use high quality audio as input that will preserve all the details and won't have pronunciation problems.

Thank you!