Inspiring

Question

Getting noises in exported file

Forum|Forum|6 years ago
April 25, 2019
2 replies
4871 views

I'm facing a problem exporting 4k timeline to h264 "matching source high bitrate".

I'm getting noises in some frames.

After several trials of different h264 settings i found the "match source adaptive high bitrate" to solve the problem. but it comes with a heavy penalty - the size of the file is 6 time bigger!!!

Any idea?

Thanks

Arikw

This topic has been closed for replies.

Community Expert

You need a higher bitrate than 10 for good results for 4K. Besides the problem you uploaded, take a look at the boat and the loss of details and the amount of macro blocking. Try H.265 to use lower bitrates.

4K=big video files.

arikwAuthor

Inspiring

Both files are 4k!!!

The first one - "h 264 match source high br" - comes out smaller than an mpeg 1920*1080!

Uptill now with very good results! no noise! (anything to do with the new version?)

Following your advice I was trying to lower the BR but less than 63.3 BR (which is the adaptive setting) 50 BR the noise remain!

I was trying also facebook, vimeo, youtube 4k ultra hd settings and h 264 high quality 4k but the noise is still there.

Any other idea?

Community Expert

sample of setting that doesn't work

Try to export to D: directly and not to the folder you are trying to export to.

Inspiring

Hi, could you post screenshots of the original frame and the exported frames, and also the detailed settings ?

It's very difficult to "see" the issue as we all have our own perception of "noise" (if that makes sense).

arikwAuthor

Inspiring

the original 4k from timeline

the exported h264 match source high bitrate

the h264 setting

never happened to me before!!!

arikwAuthor

Inspiring

In addition to the stills I uploaded to you tube two short clips.

Usually i'm using the "h264 match source high br" with no problem.

In this case I had to use the "adaptive high br" to avoid the noise.

the size of the second file is 6 times bigger than the first.

exported h264 match source high br - YouTube

exported h264 match source adaptive high br - YouTube