29 Jul
2013
29 Jul
'13
4:15 p.m.
On Mon, Jul 29, 2013 at 03:27:33PM +0200, Philipp Überbacher wrote:
while the paper
(http://www.dolby.com/uploadedFiles/Assets/US/Doc/Professional/
AES128-Loudness-Normalization-Portable-Media-Players.pdf)
is interesting, it's not what I was looking for. What needs testing is
whether the loudness adjustment of RG2 compared to RG1 is perceived as
'closer to equal loudness'. When some sort of actual listening test
shows that RG2 performs significantly better, good, otherwise I don't
see the point.
ITU-1770 on which both R-128 and RG2 are based has been tested extensively
over a long time and shown to work very well. AFAIK there was no comparable
amount of testing done on RG1.
I do find their recommended conversion equation
questionable, they came
up with it based on their sample set plus thumb measure. There's no
telling what the results will be, but I don't expect them to be any
good.
Why not ? The tests on the sample set (which is not small) show quite
a good agreement between the two systems.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)