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Broadcast compliancy
Hi.
I made a television commercial for someone and now I must submit it to DG Production Services. I have a PDF with some of the following specifications (I am hoping someone else has submitted this way and could help me out):
Maximum Setup Levels
ITU-R BT.79 compliant (HD)Maximum Luminance Levels
ITU-R BT.79 compliant (HD)Maximum Chroma Levels
ITU-R BT.79 compliant (HD)Is there some way I can make sure my commercial is compliant with all of this from Premiere?
Also, there is this information:
H.264
Video
H.264 (.MOV)
50 Mbps
4:2:2
GOP structure not defined
29.97i frames/sec.
Field dominance not applicable
1920 x 1080 (16:9 aspect ratio)I am a little confused by the 29.97i and then it says Field Dominance not applicable. I am unsure whether or not they want me separate the fields or not.
Thanks for your help!
Joe.
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3 Replies
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Every station has unique specifications. They are talking about making the spot broadcast legal. For more details visit: https://www.itu.int/rec/R-REC-BT/en
The 29.97 is 30fps in drop frame timecode. It is a more accurate representation of 30 frames per second shoot speed.
“I was born brilliant, but education ruined me. Well, no, not really, just my bank account.”
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The past couple of months I have sent commercials to 5 different tv markets… multiple stations in each market including using DG Direct. This is what you need to do. Open up the Export Settings box and select Quicktime from the format dropdown menu. When you do this you will see that the preset menu only gives you DV settings. Not a problem. Go down to the Video Codec menu and pick H.264. Next scroll down and you will see the frame size is still DV 720×480… change that to 1920×1080. Next change the aspect to square pixels! Now go to the bitrate settings and check the box… you will notice that the file size shows up at the bottom of the window… maybe about 3 MB, quite small. You will change the data rate to 50,000 and the file size for your 30 second commercial will change to around 178 MB! You can also set the key frame distance… I usually do 15 frames. You can also check off the box… Render at Maximum Depth. Not sure if that is necessary. Hit export and you are all set. If you choose 30,000 the file will drop down to about 100 MB. The file will take a while to upload. You might render at both data rates… and play them back… you won’t see a difference in how they look! Good luck with it.
Dave Speace
Producer/Director/DP
DZP VideoWindows 7, 64 Bit, i7 8 Core, 16Gb Ram, GeForce 4800
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Thank you for all of your help. I will check it out and let you know if I have any questions.
Best regards.
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