So when should you use a lavaliere microphone? The short answer: you should use one whenever possible but in conjunction with a boom microphone. Actor behind the scenes of a video shoot

Lavaliere microphones are not a magic bullet for video production that many people believe they are, especially when used on untrained people not used to wearing them. They are subject to rubbling, jostling, clothes noises and turned heads – and with wireless, radio interference.  That said, sometimes the audio captured on a lav will be far superior to what is captured on a boom microphone, so it’s always a good idea to capture it as well on its own track. Never, ever capture boom and lavaliere on the same track. Otherwise, if one gets spoiled they both get spoiled and your production is ruined.