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After rendering an edited video the new video is about 1 Gig more than the original. Why? It seems excessive to me. Original Video Specs: Frame width: 1920 Frame height: 1080 Total bitrate: 15112 Kbps Frame rate: 59.94 frames/second Audio sample rate: 48.000 kHz. Video length: 12mins.14secs.

New Video Specs: Frame width: 1920 Frame height: 1080 Total bitrate: 26500 Kbps Frame rate: 59.94 frames/second Audio sample rate: 44.100 kHz Video length: 12mins.01sec.

Blender - Output setting: FFmpeg video container: MPEG-4 codec: H.264 output quality: High encoding speed: medium speed Audio codec: MP3

Ooh, Blender 2.79a

Thanks

Victor

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    $\begingroup$ Uhm... your new bitrate is too high. Keep it lower, about 15 Mbps (~15000Kbps) for 1080p high FPS videos. Also try to use variable bitrate if possible, otherwise action-rich scenes appear somewhat pixelated. See e.g. here for further details. $\endgroup$ – Ignatiamus Jan 25 at 8:09
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Let's take some math.

12m with some seconds it is about 720 sec. Lets take this length. 

First video size =
bitrate * Length = 15112 Kb/s * 720s = 10880640 kb = 1360080 kB ~ 1.36 GB

Second video size = 
bitrate * Length = 26500 Kb/s * 720s = 19080000 kb = 2385000 kB ~ 2.38 GB

2.38GB - 1.36GB = 1.02GB!

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  • $\begingroup$ ...thanks, just my lack of experience with this. Next time I'll try to record at 30fps. $\endgroup$ – Victor Ardila Jan 27 at 1:25
  • $\begingroup$ @VictorArdila Do you see FPS in my formula? $\endgroup$ – Crantisz Jan 28 at 6:35

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