No audio MPEG4 davinci resolve studio

Hey, I’m having trouble with sound in davinci. When I to import a MPEG-4 mp4 video to davinci resolve studio, I have no sound it doesn’t even appear. (Playing it outside of davinci works)

Alsa itself works, atleast i can use the alsamixer.

If there’s any codec i must buy, I’d be willing to, just need to know where. I’d rather not convert every video I try to import.

I’ve also found this list of supported Codecs:

But I’m not sure how or where I buy the missing ones…

I’m using pipewire with alsa:
services.pipewire = {
enable = true;
alsa.enable = true;
alsa.support32Bit = true;
pulse.enable = true;
jack.enable = true;
};
https://codeberg.org/unwary/nixos/src/branch/m

ain/nixosModules/system.nix

Here I installed davinci studio with ffmpeg: