>>2603862ADR or Dubbing is best left to replace audio that isn't acceptable.
It's fairly simple to set up, find a quiet place, place the mic in an optimal point, play the visuals you want to match the audio to in front of the actor to match his performance to, and record).
https://youtu.be/lP_673W270YI usually argue it's best to match your mic as best as possible (using the same model or same mic as location works).
>>2603771Bad Mic Placement (+reliance on on-camera mics), Limited Audio Sources, Poor Location Scouting, bad audio engineering/mixing, and lack of separate room tone/control of room tone (say, turning off a fridge or a buzzing light bulb).
Bad Mic Placement:
Aim directly for the tip of someones nose/bottom of their chin within about 1sh meters/4ft of the subject, follow the subject, and move the mic to keep hitting that sweet spot.
Limited Sources:
Sometimes people (generalizing a bit here) will stick to a single shotgun mic+boom op to capture the audio of a scene. However, it's better to get as much audio as you can whilst on set - Plant Mics (mics hidden within the scene [say, a potted plant]), Lav Mics, and even On-Camera mics as a full backup (these are a sort of last resort). Having more sound on your plate means even if it is bad it can be pieced together much easier.
Room Tone: Record at minimum of 60 seconds of room tone per location with the cast/crew in it and nobody making a sound. Also, turn off/unplug appliances as much as you can. Maybe wait until the problem stops, if its an external problem (say a neighbors lawnmower etc) try to ask very nicely if they can hold off or ask when they will be done if that doesn't work.
>>2603731haha... oh wow
>>2603673Good Luck.
>>2603141Short & sweet:more/less motion blur, and adjustment for higher/lower framerates.