• DaVinci Resolve

  Reducing screen size creates larger file

  Posted by Jim Lightfoot on August 28, 2022 at 12:58 am

  I’m an occasional user of Resolve but one thing that surprised me was when trying to reduce a screen size from 1920 x 1080 to 1280 x 720 ended with the original 1080 2GB mp4 being inflated to a 720 5GB .mov. The issue being the significant size increase.

  I used the standard Export to Youtube option to create a H.264 file in mono as it was a Zoom recording. Data rate 7.12 Mbits/s, AAC, 4800 Hz. The original mp4 had “current size 1440 x 810” via get info in QuickTime and I don’t know what that refers to as its format is listed as 1920 x 1080. Any ideas what’s going on here?

  Tero Ahlfors replied 3 years, 11 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Tero Ahlfors

  August 28, 2022 at 2:26 pm

  If your exported file is bigger, then your exported format/codec is using a bigger bit rate than the original file. If you want a smaller file then set a lower bit rate.

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