To VBR or not to VBR
Posted: Mon Oct 22, 2018 7:00 am
Last question post for the day 
I'm the kind of guy who likes hefty multiple pass renders for strong but visually lossless compression.
When rendering video that is intended for live shows I always use the quick decode functions to ease the burden for the show machine.
Past shows when trying to figure out some choppy playback i found a notation in the manuel saying vbr could lead to problems playing video back to back, and ofcourse i do a lot of fading en things on top of that.
The VBR was not the cause of my current issue but got me thinking.
CBR really needs more than 25% extra bitrate for the same quality, for multiple reasons i want to keep my show files as compact as possible but quality is still defining.
the Manuel says about the topic: the bit rate is set from the first cue and stays that way
I'f used VBR for years without problems but i do always encode at the same average for all video in the show.
Example all my renders are done with HEVC ~8500kbps 3 pass.
Could this prevent vbr problems in playing multiple videos or is it just as ''dangerous'' and is cbr always the way to go?
What do you guys have for experience?
I'm the kind of guy who likes hefty multiple pass renders for strong but visually lossless compression.
When rendering video that is intended for live shows I always use the quick decode functions to ease the burden for the show machine.
Past shows when trying to figure out some choppy playback i found a notation in the manuel saying vbr could lead to problems playing video back to back, and ofcourse i do a lot of fading en things on top of that.
The VBR was not the cause of my current issue but got me thinking.
CBR really needs more than 25% extra bitrate for the same quality, for multiple reasons i want to keep my show files as compact as possible but quality is still defining.
the Manuel says about the topic: the bit rate is set from the first cue and stays that way
I'f used VBR for years without problems but i do always encode at the same average for all video in the show.
Example all my renders are done with HEVC ~8500kbps 3 pass.
Could this prevent vbr problems in playing multiple videos or is it just as ''dangerous'' and is cbr always the way to go?
What do you guys have for experience?