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I have a song from a show. During the song there is a conversation between two characters and I was wondering is there anyway to cancel that out and make the actual music (background music) more prominent. Please help.. I have a few songs like this.

marked as duplicate by JSmith, Michael Hansen Buur, José David, Rory Alsop Aug 22 '16 at 11:18

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    I don't think this is a duplicate - since the initial conditions are not the same. kelsey does not have the isolated conversation track he could subtract. – Tobi Aug 10 '16 at 11:46
  • I know but in fact the case is even worst as he doesn't have any material to cancel the vocals. – JSmith Aug 10 '16 at 14:12
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If the two characters' dialog is panned centre in the mix then it should be possible.

Separate the song into left and right channels, then phase reverse one channel. When you sum the audio back together, you'll cancel any material that previously appeared in both the left and right channels equally (i.e. hopefully the centre panned dialog).

Now hopefully you'll have a track without dialog, or at-least lower level dialog than before!

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I don't think you want to use Simon Bosley's solution for this situation because if you do, you will be left with a mono track with any similar information attenuated or completely missing. As I don't know what the recording is like, this could be a lot of information. e.g. drums, low frequencies, orchestra, main vocals, etc.

I would instead use a more subtle approach. I would use a Mid/Side EQ to attenuate the specific frequencies from the mid channel. This will leave you with a stereo file with most mono information in tact.

If you are capable, you could refine this more. You could isolate the most active frequencies from the conversation, and use it as a "side-chain" to control the wet/dry mix of the mid/side EQ. You would probably need an envelope follower or a gate or something with side-chain capabilities, and you would need to do some routing.

If Audacity doesn't allow you to do the second bit, or if it's a bit tricky, you could manually record and edit automation of the wet/dry mix. Assuming you can automate parameters in Audacity.

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