11 Nov
2020
11 Nov
'20
11 a.m.
On Tue, Nov 10, 2020 at 05:16:29PM -1000, david wrote:
On 11/10/20 12:10 PM, Fons Adriaensen wrote:
To measure loudness of a sound file, use ebur128, e.g.
ebur128 sheryl_crow-all_i_wanna_do.wav
which will print:
Integrated loudness: 7.4 LU
Loudness range: 2.8 LU
Peak level 0.3 dB
A few lines of bash can parse this and call e.g. sox with the
right arguments.
In this case, to have standard loudness you'd reduce the level by
7.4 dB. Note that this file also has inter-sample peaks above
full scale.
--
FA
If you want a constant loudness then
normalisation as discussed in this
thread (i.e. on peak level) is _not_ the way to go. You should normalize
on RMS level or a dedicated loudness metric such as EBU-R128.
Hmm. That's something I prefer, too. How do you do that?