• Adobe Premiere Pro

  Video bitrate not matching target bitrate after compression

  Posted by Ronnie Howard on December 9, 2015 at 11:05 am

  Hello you lot,

  I’m trying to compress a video with a target bitrate of 15Mbps. However, the file that I end up with is only about 7Mbps.

  I just did a test to see what would happen if I set it to 50Mbps and it only came out at 9Mbps!

  I’m editing a HD project with raw MXFs in Premiere Pro that are 4K and have a bitrate of 252Mbps. I’ve scaled the 4K footage down to HD for a HD output.

  And my compression settings (which have been given to me by our client for TV output) are:

  h264 Mp4 AVC
  1280×720
  Main@ L4.1
  CBR
  Target bitrate: 15Mbps

  I have another sequence in the project with rushes from the same shoot which is exporting out at 10Mbps, which is closer than the 7Mbps.

  I’m sure there is a very logical reason as to why this is happening, but I can’t figure out why.

  Has anyone had a similar issue that they have resolved somehow?

  Any advice is very much appreciated.

  Thanks!

  Ronnie Howard replied 10 years, 9 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Vince Becquiot

  December 9, 2015 at 6:09 pm

  Hi Ronnie,

  Make sure you uncheck any “match source” check boxes in the export window.

  Vince Becquiot

  Indigo Live | Kaptis Media

  San Francisco Bay Area
• 

  Ronnie Howard

  December 9, 2015 at 10:50 pm

  Hi Vince

  Thanks for responding.

  I have unchecked the match source as I’m actually outputting at 1280×720.

  I even tried exporting out a prores and then compressing from that but it’s still coming out with a low bitrate.

  Very confusing.
• 

  Ronnie Howard

  December 10, 2015 at 10:39 am

  I figured it out.

  I had a screen capture video that took up a lot of the timeline that was 692Kbps, so I was trying to force data that wasn’t there.

  Doh!

Reply to this Discussion! Login or Sign Up