I recently filmed a wedding. During the ceremony i put a lavalier/radio mic on the groom's jacket. I'm not entirely sure why but I think the vicar's mic caused interferences and at the end I was left with pretty much unusable audio. This is the first time that something like this has happened to me and I film tens of weddings a year.
I need to work with the audio from the onboard mic in the camera which obviously is all echoy, low and bad quality. I'm perfectly aware of the narrow possibilities to improve it but i'd like to, at least, make it a bit better than what it is at the moment.
what are the processes that I should use? I use Soundbooth.