How To: Export OP1a compliant MXF video files in Adobe Premiere for Channel 7

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In オーストラリア, one of the formats commonly used for television broadcast files is OP1a compliant MXF. Channel 7 has very specific requirements for how the file should be formatted for their primary and all their secondary channels. MXF is essentially a container, and inside it is the video content, the audio content, and it can also include the subtitle content. If you’ve never worked with broadcast media before it is a bit of an obscure format that you will probably not have heard of. Fortunately Adobe Premiere makes it extremely easy to export into this format. Below you will find the settings I use that are accepted by Channel 7. I cannot promise that your media will be accepted using the same settings, but I can’t see any reason it wouldn’t be.

1. Select your base format and presets

So to start with, open up the export dialog as you normally would be going to the File menu and navigating to Export > Media.

On the top right of the export dialog window you can see your “Export Settings”. Right at the top of this section, select MXF OP1a from the format drop down box.

MXF OP1a Format Selection

Directly below format, you can select a preset if you wish. There is a very long list of them available in the “Preset” drop down box. We will go through and configure the actual settings next, but I chose “XDCAM HD 50 Pal 50i” right at the bottom as my base preset because it is the closest to the specified requirements of Channel 7.

MXF OP1a Video Preset Options

2. Customise the video settings

There are a number of options available in the video settings of the Adobe Premiere export dialogue and you can check out the screenshot below to see exactly how my video settings look.

MXF OP1a Video Settings

Video Codec: For this one you want to choose XDCAMHD 50 PAL (4:2:2).

Width: 1920

Height: 1080

Frame Rate: 25

Field order: Upper First

Aspect: Square Pixels (1.0)

Enable Smart Rendering Codec: Selected

Edit Units Per Partition: Default

3. Customise the audio settings

The audio settings are pretty simple, but pay particular attention to your channels and sample size, while they are the only settings they can get your file rejected if not set correctly. Check out the screenshot to see my settings.

MXF OP1a Audio Settings
MXF OP1a Audio Settings

Audio Codec: Uncompressed

Sample Rate: 48000 Hz

Channels: 8 channel

Sample Size: 24 bit.

4. Export

That’s it, you’re done. You can now export your video into an OP1a compliant MXF container ready to be sent to Channel 7. I would recommend saving these settings as a custom preset if you need to use it a lot. Doing so helps to ensure that you don’t accidentally miss a setting!

“How To: Export OP1a compliant MXF video files in Adobe Premiere for Channel 7” に2件のコメントがあります

  1. Matt how do you layer your audio down if you have 8 channels tho? I put track 1and 2 as stereo and the rest as mono. But upon export only 1and2 can be heard and are converted to mono.





マットはフルタイムでデジタルマーケティングビジネスを営んでおり、 TerraMedia。余暇には、妻と一緒に旅行するのが大好きなので、通常は妻が多くのことをします。

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