NVE - big difference in version speed

vbimport

#1

What v3.1.0.11 manages in 1h 30 mins, v3.1.0.14 and v3.1.0.16 takes 2h 45 mins; same files, same settings. The only variable is the version of NVE.

Why?


#2

I don’t know for sure, but I have been told that the newer version has 2-pass encoding enabled by default, and the older versions were set to 1-pass. :iagree:


#3

As I said.my timings were based on the same settings, exactly the same, all of them :smiley:

In my case, all versions were set to 2-pass encoding. Maybe the 2-pass encoding setting in pre-3.1.0.14 versions only does a single pass? TBH, I don’t recall noticing a big difference in quality of 2-pass over 1-pass, nor a significant increase in encoding time.

Edit: Nothing in the release notes at all.


#4

Come on, there must be somebody who can explain this one.


#5

Maybe they switched there encoder. Open up the output files (one with .11, one with .14/.16) with VirtualDubMod, pick a frame, go to the same frame on both, and compare the quality.

I would contact Ahead, maybe they can explain this.