On 12/11/2011 01:19 PM, Fons Adriaensen wrote:
On Sun, Dec 11, 2011 at 12:49:10PM +0100, Robin Gareus
wrote:
For comparison, ebur128 reported:
Loundness-range 19.1 LU; Peak 6.7 LU for the Chaplin movie.
and
Loundness-range 11.3 LU; Peak 15.3 LU for the youtube video,
?? ebur128 does not report anything called 'Peak' in LU.
No it does not. "Momentary max" did not fit in the line w/o line break
in my mailer :)
The relevant values are the first two: 'Integrated
loudness'
and 'Loudness range'. The first should determine any gain
correction, the second can be used to decide if some com-
pression would help.
The last two, 'Momentary max' and 'Short term max' (I guess
one of these is what you call 'Peak') are for information
only and should not be used for the purpose discussed in
this thread.
Thanks for the clarification. So let me correct that:
The Great dictator DVD has an
Integrated Loudness of 4.1 LU, Loudness Range 19.1 LU.
and 'Music for one appart. and 6 drummers' from you-tube:
Integrated Loudness: 12.9 LU, Loudness Range 11.3 LU
Both are already normalized to 0 dbFS.
Checking some more, revealed that you-tube does not actually normalize
audio volume automatically: e.g.
http://www.youtube.com/watch?v=hJMEvDu0K2E peaks at -16.5 dbFS
Integrated Loudness: -1.7 LU, Loudness Range 9.9 LU
Updates of ebur128 will show only the first two,
unless
you explicitly ask for the others as well.
Ciao,
Cheers!
robin