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File Size - From Zoom to YouTube

New Here ,
Aug 10, 2020

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Hi,

 

I've done a webinar with Zoom. I downloaded the file 600.9 MB

 

When I try to export using HEVC H.265 format size go up to 2.64 GB

 

Output: 1760x900 mp4 - 25 fps

Source: 1760x900 25 fps

 

Any idea how to reduce file size without loosing video quality?

 

Thank you

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Error or problem, Export, Formats

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File Size - From Zoom to YouTube

New Here ,
Aug 10, 2020

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Hi,

 

I've done a webinar with Zoom. I downloaded the file 600.9 MB

 

When I try to export using HEVC H.265 format size go up to 2.64 GB

 

Output: 1760x900 mp4 - 25 fps

Source: 1760x900 25 fps

 

Any idea how to reduce file size without loosing video quality?

 

Thank you

Topics

Error or problem, Export, Formats

Views

55

Likes

Translate

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Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Adobe Community Professional ,
Aug 10, 2020

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"Any idea how to reduce file size without loosing video quality?"

Well, those are basically the two variables in play and they are tied together. The higher the quality, the higher the filesize. So there is no actual way to reduce file size without losing video quality. You just need to find a balance.

The reason why the file size is going up in this situation is that the bitrate on the videos from zoom are absurdly low. It's something like 2-3Mbps. Maybe even less than that. So if you wanted to match that bitrate that's probably about the setting you want to go for, but keep in mind that it's not a straight through conversion where the bitrate gets maintained. The video is being re-encoded (created from scratch, basically) so you are adding a "generation" of loss. So, I would at the very least up the bitrate a little bit from the source to help compensate for that loss. At the end of the day it's a zoom video, so I don't think people are expecting perfection when it comes to compression.

If you want to get a better idea of the bitrate of your source files you can look in the tree view of Media Info. It's a handy app to have around as an editor.

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