NeroAacEnc: Linux and Windows versions, what's the difference Options

[_faber_]

Hello. I was using NeroAacEnc as long as I was active Windows user. Not long time ago I began to use Ubuntu and my goal was to get the same experience. And few days ago I've tried Linux version of my favorite codec. When I compared encoded files, I noticed that they slightly defferent in the beginning and in the end of the file. In the figures below you can see the beginning of the file.


Fig.1 Source



Fig.2 Made by Linux version



Fig.3 Made by Windows version



Fig.4 Made by Windows version in Ubuntu through the Wine


To tell the truth - I can't hear any difference between those files. But it makes me crazy. Why they are different and why this difference appears only in the beginning and the end of the file? And which of the version is more accurate? I've tried to find the answer by myself but didn't succeed.

P.S. Excuse me for big pictures but I can't understand how spoiler tag is working here and I don't now how to hide them.

This post has been edited by _faber_: Jul 2 2012, 21:14

[db1989]

Lossy encoders are well known to frequently produce negligibly differing output between different builds, such as those produced by different compilers, all else being identical. Being compiled on/for a different operating system with different APIs and suchlike is just going to increase the probability. This should not be surprising!

In other words, I doubt that the differences here are in any way significant. _faber_, your ears seem to agree with that conclusion. That’s both sufficient and necessary as far as Hydrogenaudio is concerned!

And hey: on the off-chance that you’ve uncovered something that actually matters, you’ll have helped the developers: everyone wins.

This post has been edited by db1989: Jul 2 2012, 23:59