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WLM / EBU R128 specs question
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velocityraptor
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#1
13th February 2013
Old 13th February 2013
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WLM / EBU R128 specs question

Can somebody please explain in layman's terms a few things about the EBU R-128 standard and its relation to the Waves Loudness Meter.

Specifically I'm mixing an amateur short film that will mostly be shown online, so I'm aiming for just a touch louder than a DVD mix which I understand to require -23LUFS.

Using the WLM my mix is currently sitting at -19LUFS (Long Term) with a -1.5dbTP. However the Range is 26LU. Can somebody with a bit more experience tell me if this range is a bit too high for the online world? Is some compression in order?

Also, when I read about +/- 1LU in the EBU R-128 specs (-23LUFS +/-1LU), what specifically in WLM would that refer to?

Edit: I should also probably mention I'm using my university computers for WLM and I'm pretty new at this...
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13th February 2013
Old 13th February 2013
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Last time I checked there was no standard for internet broadcast.
I generally mix to -3dBFS with a -12dB threshold for web stuff and check that on Macbook speakers set around 40-50%.

But if you are mixing to the standard your long term should be -23LUFS with a -1dBTP.
Haven´t mixed to that spec myself so I´m not sure how it translates to web.
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13th February 2013
Old 13th February 2013
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For Youtube, R128 translates fine.
Of course I do not know for sure if Youtube compression changes levels and/or dynamics, I do not think so.

but for the internet, louder is still better (for most customers)
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13th February 2013
Old 13th February 2013
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Hi,
For online, there is no standard regarding integrated Loudness. Your -19 LUFS and TP are just fine. Personally would push it a little bit more, like -16 LUFS. What sounds strange though is your Range (LRA) of 26 LU. That is waaay too much dynamics for online content. You should aim around 12-15 dB. Yes, compression should fix it, although it seems strange to me how you achieved 26 dB in the first place...
+/- 1LU refers to the tolerance admitted for the integrated loudness. But it really depends on the broadcaster if he admits it or not. It's not relevant in your case.
velocityraptor
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16th February 2013
Old 16th February 2013
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Thanks for the help guys. I think I ended up with 26db range because its a horror short and there are long patches of near-silence with just low ambient noise to monitor. I think if I was to measure everything but the ambience it would be a much tighter range. But I'll have to compress it nonethless.
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