Studio VS Location Sound Recordeing-
studio recordeing is slightly easy becasue you can rearange the microphone for different takes and you can also have them in one place instead of moving which may distort the sound. studio on the other hand is quiet which isnt very good when recroding becasue you will not be able to hear. but you can get the sounds you need when using a shotgun microphone.
location recording would be hearder to do becasue you would get a lot of background noise and so it wouldnt be as clear as when you are in the studio. but with location you would be able to get all sorts of sound that you wouldnt be able to get whewn you are in the studio.
Stationary VS Moving objects
stationary objects would be easy to film because they would be staying still and the camera would be able to get into focus quicker and get better quailty.
moving object are the oppostie becasue it would be harder for the camera to focus and so it would become blurry and would not be a good shot.
Getting People to Speak with Presence
you can't do a lot about this becasue its not you're choice but to make a person speak louder would be using a microphone.