Hi,
Just had a quick look at this, seems a useful little tool. For the
batch you need to use utils/normalize.py by the looks of it.
I've not really worked with python but I assume you have to make it
executable if nothing else before you start.
Looking at the code you seem to have the following command line
options:
A cart normalizing utility for Rivendell, based on EBU R128
recommendations.
'-d', '--dry-run', help="do not modify files or database"
'-H', '--hard', help="modify actual cuts instead of play_gain value
(dangerous)"
'--log', default="normalize.log", help="specify a name for the log
file. by default, logs to file "normalize.log"
--no-log', default='normalize.log', help='disables logging'
'-t', '--target-loudness', default=-18, help="desired loudness level"
'-D', '--delta', default=30, help="specifies a minimum level difference
before applying normalization. This is expressed in hundredths of dB
(100 = 1dB) (default 30)"
'-M', '--maximum', default=5, help="maximum gain to apply to original
cut (default 5dB)"
'cartrange', nargs='+', help="a space separated list of carts. Cart
ranges in the format 000000-999999 are also supported"
So I guess an example command would be:
./normalize.py --dry-run --log "~/normalize.log" --target-loudness -18
000000-100000
I've not used this before so backup your DB and files before hand just
in case you inadvertently distort all your files and apply weird gain to
the db play_gain field.
Regards,
Wayne
On 2013-06-01 01:06, Richard Lamont wrote:
Hi,
I am trying to set the loudness of a few thousand cuts to -23 LUFS
(EBU
Rec R128) using the python-rivendell script to set playback gain in
the
database. (I don't want to change the audio files.)
I have built the libebur128 package and it's fine OK on the command
line
providing I specify --force-plugin=sndfile. (This isn't a problem
because all the audio here is .wav)
I have git cloned the python-rivendell thing but I'm completely
baffled
to know what to do with it next. I'd appreciate a simple explanation
of
how to get this module working.
TIA.
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