Zoom Recording Edit Large File Size

[tlempicki]

Hello! 

I am trying to combine two Zoom meeting recording clips together.

• Clip 1 is about 40MB (1280x742, 25fps, 312kbps bitrate, 12min42sec) h.264 / mp4
• Clip 2 is about 150 MB (1440x812, 25fps, 546kbps bitrate, 30min10sec) h.264 / mp4

I am having trouble when I create a sequence in Premiere with the same settings as the first file that is just a combination of both clips. When I render out the final file is a huge 950MB.

Final Clip: is about 950MB (1280x742, 25fpx, 2797kbps bitrate, 42min26sec)

I am trying to encode the clip with the same settings but at 500 kbps bitrate, but for whatever reason media encoder seems to be ignoring me and going with 2797kbps bitrate. 

• Do you know what the best settings are to encode this video so it is a more reasonable size?
• Why do you think it would be basically ignore my wish to do a 1 pass encode at 500 kbps?
• Is there a bitrate lower limit for the profile and level or resolution?
• What are better settings to use?
• Most of the footage is just shared screen that doesn't change at all. Is there a way to optimize for shared screen footage with almost no pixel changes for minutes on end? You would think that the file size would be much smaller if there isn't much changing on the screen.

I appreciate any insite you can provide.

Thanks,

Tim

[Grazuncle]

Hi.. I have had the same problem!

The main issue is the bit rate you original bit rate was is 312 Kbps but the output is in 2797Kbps. close to 10x the input rate of the original... hence the ouput size.

I'm still learning this myself.. I tried plain MPEG4 but presently can't overcome the restriction of the file size

I just get an error as below and no tips to get past it.

in the end i just saved my own concoction...  with 2Mpbs bitrate

[tlempicki]

Thanks! Grazuncle. I found that using a VBR 2-pass and lowered my overall file size to a much more reasonable size. It still doesn't seem as good of a codec/compression as it could be for screensharing since a lot of pixels never change I just don't know what settings could be tweaked to allow that. Additionally make sure the sidecar metadata file is turned off in your encoder settings some people mentioned that can cause some issues too.

[Grazuncle]

this is great information..!

Is the sidecar a tick box option somewhere in a dialogue box?

I'll definitely look into that!

[tlempicki]

When I am in the export settings for Media Encoder 2022 there is a "Metadata..." button on the bottom below the estimated file size and to the left of the OK button. It might not even be a thing, but just make sure there its either off or at least not embedded into the file

Export Settings Metadata button

Metadata Export Options

I think VBR 2-pass is what helped me the most though to get the file size more closely matching estimated size.

[Grazuncle]

Thanks for taking the time to reply!

Appreciated ☺️