I am trying to record video and audio is from a mixer that has a guitar plugged in. When I follow the tutorials that I have found it show where I should keep the audio in so it doesn't clip which is the same as any audio recording. But just today I noticed that if you look at the audio meter even though it is staying in the yellow and not hitting the red, if you look at the very left of the meter it shows a little first section of different colors (green, yellow, red ) what is that telling me? Thanks,