Loudness correction to EBU r128

Questions and answers on how to get the most out of FFAStrans
abul
Posts: 54
Joined: Wed Sep 11, 2019 12:45 pm

Re: Loudness correction to EBU r128

Post by abul » Tue Nov 26, 2019 10:34 am

Please see attached.
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Loudness-2 test.xml
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admin
Site Admin
Posts: 1303
Joined: Sat Feb 08, 2014 10:39 pm

Re: Loudness correction to EBU r128

Post by admin » Wed Nov 27, 2019 5:56 pm

Hi abul,

Honestly I can't see how your workflow makes things better. What your custom node do is disregard the second source audio track and map the first to the second on the output, like this:

FROM XDCAM TO CUSTOM FFMPEG:
0:0 (Video) -> 0:0 (Video)
0:1 (Audio 1) -> 0:1 (Audio 1)
0:1 (Audio 1) -> 0:2 (Audio 2)

Throw away the custom node because it just makes things worse.
Even though the XDCAM node creates two separate mono tracks you need to understand that the two must be read by Eff as a stereo pair. If you cannot do this, maybe setting the XDCAM node directly to 1 track with 2 channels (stereo) will make it easier for Eff to get it right.

-steinar

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