Audio is much more important than how something looks on screen, if you can't hear what is going on in the video then why will the viewer continue to watch. When you have good audio you don't notice how essential it is. Guidance on recording audio for interviews, podcasts, radio and similar.
Different microphones have different uses that may or may not work for your project. Learn the differences between when you should use them
Using the camera is probably easiest but make sure you know how it connects.
Different microphones have different uses, not sure which to use? Check out the video above
Think about the location you are recording in a noisy environment isn't a good location.
When you're recording listen out for sounds in the background that might impact the recording
Make sure your microphone is pointing towards where the source of the audio is.
Whatever your location record some ambient noise so when you're editing your clips you can use it to cover up any cuts you make.
Use the headphones while you are recording so you know what it sounds like all the way through. Remember adjusting the volume of your headphones will do nothing with your recording, you must adjust the level on the device to make any changes.
Have you thought of how you will capture your audio? Using the camera input might not be suitable. This video will look at some tips on recording your audio.