[Grant Stone]

So the black magic records audio. Have you tested the audio at every step of the audio chain.? The Canon is famous for audio problems. Are you sure your levels to the black magic aren’t clipping and hitting digital 0. if the levels are to high you will get no sound or if the levels are to low you won’t hear it. You should get with a sound engineer or set up that mixer and make sure your outputting a line level signal to the deck.