You can try a tool like iZ

#195344
Avatarrs170a
Participant

You can try a tool like iZotope RX at http://izotope.com/products/audio/rx/ but your problem is going to be that the voices of the people talking are in the same frequency range as that of the concert performers and when you reduce one, you reduce the other. Next time, try to get a feed from the sound board and mix this with the live sound you record separately.

Mike

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