MXF OP1a export for broadcast

[Daniel Waldron]

The video settings are pretty straight-forward. You should be able to set those in your export window. You’ll probably just want to make sure your chroma and luma levels are broadcast safe.

Audio can be a little tricky. I would bring your final audio mix into Audition, so you can easily normalize the audio. I like to use the Match Loudness feature to automatically bring everything into the broadcast legal range. You’ll want to have a good sounding mix first though. You can use the Loudness Radar in Premiere or Audition to help adjust your mix manually. Keep in mind that with stereo exports, I believe Premiere may export 3db louder, so do a test export (you can check it with the Amplitude Statistics or Loudness Radar in Audition) and if that’s the case, just drop your levels -3db in Premiere and you should be good. Premiere also has a Loudness Normalization box in the export window, but I’ve had mixed results with that.

[Nelson Ng]

Is there a specific preset for the video I should use?

I wasnt sure what to put for
GOP – IBBP (Length: 12) – Sequence header on each GOP – First GOP closed

And where I can change the Bit Rate

[Tero Ahlfors]

MXF OP1a is a pretty strict codec. Pretty much the only setting you can change is whether the file is interlaced or progressive. You don’t need to bother with anything else.

[Todd Perchert]

There are system presets for MXF OP1a in AME. Just scroll down to the one that matches your listed requirements. There’s an XDCAM 50mbps 25fps 1080 preset.
TC