-23 LUFS loudness

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ljhak
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2012/10/22 04:27:34 (permalink)

-23 LUFS loudness

Hello.
 
I'm sorry if it is not suitable to this thread but just tried to post here as I'm a X2 user.
 
I'm used to making instrumental tracks for production library that has -0.3db peaking and under-10 RMS.
(I just learned roughly that -0.3 db peaking and under -10 RMS is standard.)
 
Recently I just noticed about the standard loudness(-23 LUFS) and am wondering if it is necessary for composer to make his tracks with the broadcast standard loudness(-23LUFS) for commercial production music.
(Actually I don't know how to control, view -23 LUFS and think it seems much quieter than -0.3db, maybe under -6 db peaking)
 
Or, is it a problem for broadcasters(music producer) who consider the track to use in their media?
Please give me some advice.
 
Thanks
JunL
 
#1

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    SuperG
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    Re:-23 LUFS loudness 2012/10/22 16:53:55 (permalink)
    Hi, I'm new to the forums, but maybe I can help.


    Most of what you read online in reference to LUFS is related to the ITU BS.1770 standard, which addresses program levels, primarily in broadcast applications. It's used primarily to ensure that commercials do not play significantly louder than than program material, but it has some other uses as well.


    For music production, I would stick to the K-system. This 'unofficial' standard addresses program levels too. There are three choices for reference levels -20, -14, and -12 dbFS. -20dbFS is generally used for classical, high dynamic range material, and film (-20dbFS is the SMPTE standard reference). -14dbFS is used for most popular music, and -12dbFS is used by radio (to keep a high S/N ratio going).


    K-meters read both RMS and peak, usually together. In your case, you'd probably want to go for a K-14 reference. This gives you 4dbRMS of headroom before hitting -10dbRMS. Of course, it also offers 14dbFS peak headroom.


    Most of the better plugins now offer K-metering, and there are several free ones as well. I use the 
    K-meter from mzuther that's available at KVR.




    #2
    John
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    Re:-23 LUFS loudness 2012/10/22 17:33:43 (permalink)
    You need to calibrate the system if you wish to use any system. A SPL meter is needed for that.

    Best
    John
    #3
    SuperG
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    Re:-23 LUFS loudness 2012/10/22 21:24:47 (permalink)
    That's true, in a 'strict' sense. The K-meter recommendation sets a common monitor volume at the reference point. This is so that volume is the same when mixing regardless of which reference level you choose, K-20, K-14, or K-12.

    After deciding on which reference level, say K-14, you need to output a pink noise signal on one track. The output should register at your RMS reference level, K-14. Then using an SPL meter (C weighting), you adjust you monitor output to get 85db SPL. Do each speaker separately.
    #4
    ljhak
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    Re:-23 LUFS loudness 2012/10/26 06:05:43 (permalink)
    Thanks for the reply.

    Shamefully I still can't understand thoroughly.
    But thanks to reply I would try K- metering system.
    #5
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