Audio sync

Hello all

I got a question about syncing audio on a music concert, i ve several sources of filmed material and one good audio source
What i wanna do is create a multicam dvd with the good audio source, the question is how do i get the good audio source synched with the footage

Is there a trick to do or just listen and watch, i can play both audio sources together but is there a way do do in kdenlive somewhere, somehow

Thx