[LAU] keeping same perceived level on mp3 files
Atte André Jensen
atte at email.dk
Sat Oct 6 11:08:43 UTC 2012
On 10/05/2012 09:13 PM, Fons Adriaensen wrote:
Thanks for your reply, Fons!
>> Do you just want to adjust the loudness between multiple files?
>> (this means there is just a constant gain for every file so the they
>> are similar on average)
>> Or do you also want to change the loudness inside one track?
Not sure what you mean. I don't to change the internal volume of each
track. Basically I just want to avoid that when I program the levels of
the patches on my hardware synth, I later (on stage or rehearsing with
the band) realize that on some songs my synth is too loud and on some
songs it's to soft.
I tried it on a couple of files:
atte at blokhus:~/music/bands/eldorado/mp3$ ls *.wav | xargs -iarg ebur128 arg
Integrated loudness: 13.7 LU
Loudness range: 3.8 LU
Integrated loudness: 13.0 LU
Loudness range: 2.2 LU
Integrated loudness: 6.0 LU
Loudness range: 3.6 LU
Integrated loudness: 10.8 LU
Loudness range: 4.5 LU
Integrated loudness: 12.9 LU
Loudness range: 3.2 LU
Ok, so it seems the third file is softer than the rest, which is very
true. But how do I interpret those values, and how do I call sox for a
gain adjustment?
Sorry for being stupid...
--
Atte
http://atte.dk http://modlys.dk
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