Rendering to image sequence

hi guys

i am finishing a video and i need to do the post-processing in blender. the best way to do that in my opinion is to render as an image sequence that way i wont loose quality...

the thing is i cant find a profile to render as a png image sequence.

also i need to export tha audio separately to do some mastering in audacity. could anyone share a profile for that as well.

my footage is fullhd 24p.