Quoting Robin Gareus (2011-12-11 14:27:35) >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
Thanks everyone, sorry for the late answer, I had a combination of email client trouble with Christmas stress among other things. It would be very nice if at some point youtube would use such a system. It's rather common today that people use youtube playlists instead of local music. This could at least solve the problem of different volume. Anyway, I won't be implementing replaygain at this time, but I still think it's worth doing. Maybe I'll pick up the idea some other time or someone else does. For the project I decided to go with the ecasound GUI. The plan is to write the GUI using JUCE. The minimal set of goals is, well, minimal, but I have a few ideas, I'll see where to got from there. No idea how usable it will become. Ecasound sure could use a GUI other than the Tk thing nama provides. Imho ecasound has also become more interesting with the recent addition of LV2 support. Thanks everyone for sharing your thoughts, I wish you happy holidays. Regards, Philipp _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
