If you have something to say you could say it to me, you know? And by the way I was so drunk when I posted those videos.
I won't edit my message though. It's not funny, it's a bit exaggerated but to me it's the truth. Please don't be so sensitive about it.
And about those so called dynamics, I did read the thread thank you very much. If you look back at page1 I answered two times.
I can't hear a difference with my 5.1.
Do these things really matter to you anyway? Wouldn't you be happier if PD improved other aspects of game? Important aspects maybe?
How about tweaking the physic engine or improving the online experience instead of giving us useless suits, horns and color items?
And of course, as I said, SOUNDS. Cars don't feel alive if they don't have proper sounds. They're a pretty "incentive" to jump in a car and drive.
It is a very subtle change this time. That doesn't matter, of course - you're free to enjoy the sounds on your own terms. By the way, I'm always astounded by how much like a "real" engine those miniatures sound.
I would indeed rather they fixed the broken things, but until they come, these little tweaks are fine - I'd certainly not forsake them because personal pet feature #27 is still missing, although I may well still be disappointed. For all I know, it's in the works. Or not.
People are certainly having fun attacking any claim of a small change and, drunk or not, inserting tedious repetition. And yes, there are those who are exaggerating the claims, and those relatively slow to pick up on things in the game since launch (
Landbergaren 
). Sadly, it all adds nothing to the discussion.
That said,
eran0004 is on the money with his guesses regarding the sound samples vs. tweaking numbers for falloff / attenuation and reverb etc.
Additionally, the car sounds in a game can be likened to instrument samples, with variations for note pitch (rpm) and - to use the MIDI terminology - "velocity" (on / off throttle). Although I doubt if GT5 uses distinct samples for off-load, instead of simply using level changes and possible filtering.
In GT5's case, there are several thousand samples to keep track of, which is best handled with specialist (asset-management) software. If the sounds are packaged in any way (like a soundfont file is), they may be harder to change; if not, they can potentially be straight-swapped fairly easily. I'm unsure if samples themselves have been changed, since changes to individual cars were only ever subtle, and the car sounds in GT5 do make use of filtering and other DSP effects, which are just code.
Anyway, nobody is claiming the changes are a revolution, only drawing attention to them. The patches so far (even since GT5

) have been very selectively documented, and there have been
plenty of undocumented changes picked up by the community. I expect that to continue, so get used to these sorts of topics, although it bewilders me that people aren't already.