Some things are unforgivable! Your audience will forgive a few seconds of blurry footage, a little bit of over-exposure, but kill their audio and they will flip to another channel.
A lot is said on the topic of recording audio. Which microphone to use for recording this or that. Where to place them, how to hide them from your shot, and so on. But once you’ve got all your audio recorded and you’re editing your video, what do you do with all of this sound? This video from Pond5 shows 5 basic, but essential, audio mixing techniques every filmmaker or YouTuber should know in order to get the best final result.