LFE channel isolation in a 5.1 mix

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LFE channel isolation in a 5.1 mix
by Ralph Gould on Aug 1, 2012 at 6:33:45 pm

When I add a 5.1 set of wave files to Premiere, I automatically get some of the LFE signal to either the L/R channels or surrounds depending on how the little panning boxes are set on the mixer. I can control the level of the LFE channel by using the bass fader on the LFE input channel. Is there any way to kill the LFE channel feed to the L/R and surrounds and isolate it to the LFE channel alone?
Thanks

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Re: LFE channel isolation in a 5.1 mix
by Richard Knight on Aug 1, 2012 at 7:10:08 pm

Premiere has a problem in sending one track to just the LFE. This is the work around I use. Put the mono LFE track on two tracks above each other in the timeline. Send one to centre channel and the LFE channel. Send the other to just the centre channel BUT with the invert effect added in the mixer. This will cancel the centre feed with the origional track leaving just the LFE. This will only work if the levels are identical between the two tracks.

Richard Knight

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Re: LFE channel isolation in a 5.1 mix
by Ralph Gould on Aug 1, 2012 at 9:50:18 pm

Thanks Richard. It would seem that Adobe doen't understand that the LFE should only go to other channels in stereo downmix. Maybe they will read this and fix it.
Ralph

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