[Paul Figgiani]

Jeremy,

Try this:

Assuming you have an AirPlay compatible H.264 video file with no audio …

Pull your stems into Compressor using the Add Surround Sound Option. Use the AC3 file preset. Use Coding Mode:

3/2 (L,C,R,LS,RS). Enable LFE.

Now have Compressor build the file.

Next use Quicktime 7 to open the H.264 video and the encoded AC3 audio file. Make sure you queue the movie file and the audio file at the beginning. Select the audio file window – from menu:Edit/Select All/Copy.

Now select the movie window – from menu:Edit/Add to Movie

Now check Show Movie Properties from the QT 7 menu. You should see the AC3 audio track with the proper channel routing. Save it out. That should do it …

-paul.

[Paul Figgiani]

Also have a look at SoundFilesMerger. Easy to use drag and drop utility …

-paul.

[Paul Figgiani]

Cool. Glad to hear you solved this …

-paul.

[Paul Figgiani]

You may have started out with a Motion Project instead of a Generator. There is a box in the save dialog to Publish as FCP Generator. At this point the package that I submitted back to you is a Generator. You should be able to run it in Motion and save.

Or you can manually install it in ~/Movies/Motion Templates/Generators

-paul.

[Paul Figgiani]

https://f-video.s3.amazonaws.com/progressBar3.zip

My build works here. Didn’t do anything to it except load it in Motion and republish as a Generator.

-paul.

[Paul Figgiani]

If you want to post it somewhere I’ll pull it down and take a look at it …

-paul.

[Paul Figgiani]

Clay,

How did you incorporate the Generator in FCPX? Did you Publish it in Motion to make it available?

-paul.

[Paul Figgiani]

Craig,

A few suggestions:

For a quick fix try the Loudness Processor in Audio Enhancements:

The Limiter that everyone is referring to is located in the Audio Effects Browser. I wouldn’t recommend using this solely to increase levels. There’s much more to it. Using a Compressor before this is a better option.

You might want to look into a third party Loudness Maximizer:

Final Plug by Wave Arts

L1 by Waves (a steal for $39 bucks)

LoudMax This is free.

The bundled FCPX Audio EFX are fine as well.

-paul.

[Paul Figgiani]

Peter,

I concur with your findings. In fact I realized the mono/-6 dB attenuation a few months ago.

I had imported a produced mono VO clip into FCPX that met a specific loudness target. I noticed the FCPX output was off by 6 dB. I went back into FCPX and added +6 dB of gain to the audio before I re-exported to compensate.

My guess is it could have something to do with the Pan Law and how they coded FCPX to handle mono audio files.

I contacted apple and asked for clarification. Obviously never heard back.

-paul.

[Paul Figgiani]

Nicolas,

Have a look at the Cinemascope Toolkit plugin that I built for FCPX.

-paul.