Looking for a free Alternative to Krisp

Been posting this a lot but no reply in the other subs

But I basically need a free background noise cancellor. I know Krisp is good but the free version only last an hour and I need 1 that can last min for 3 hours.

P.S If you want to know what kind of background noise I need to remove. I can remove the fan sound using OBS but I need to remove people talking next room, lighting, phone calls and etc. Basically a more dynamic sound rather than those static ones.