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Chuck Davis
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Joined: 02 Feb 2005
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Location: Where I love to be...Between the Vineyards and the Cows.
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 Posted: Wed Feb 20, 2013 9:58 am Post subject: CALM Act compliance |
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For the first time, I've had a TV station comment on tech specs for a mix.
"-18" was all they said.
With CALM Act enforcement going on these days, is there an easy way for me to meet that spec? From what I've been able to find on-line it appears that -10db would be acceptable.
Can anyone clarify?
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heyguido
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Joined: 31 Aug 2011
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Location: RDU, the Geek Capitol of the South
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| Posted: Wed Feb 20, 2013 10:50 am Post subject: |
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Here's a link to the ATSC documentation. Fair warning.... It will make your head hurt.
http://www.atsc.org/cms/standards/a_85-2011a.pdf
Most pertinent data for your purposes in Annex I.
Hopefully, Frank will jump in here to assist...... I'm sure he gets it better than most....
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Don Brookshire
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Chuck Davis
M&M
Joined: 02 Feb 2005
Posts: 2389
Location: Where I love to be...Between the Vineyards and the Cows.
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| Posted: Wed Feb 20, 2013 10:55 am Post subject: |
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Thanks for that. It looks like -2dbTP is a good starting point.
I'm using the Massey HR meter in Pro-Tools to monitor at this point.
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todd ellis
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Location: little egypt
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| Posted: Thu Feb 21, 2013 12:46 am Post subject: |
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wow. just .... wow.
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Chuck Davis
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Joined: 02 Feb 2005
Posts: 2389
Location: Where I love to be...Between the Vineyards and the Cows.
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| Posted: Thu Feb 21, 2013 5:02 am Post subject: |
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 Makes my head hurt too Todd.
What I'm trying to avoid is sending stuff out too loud. These days you can hear stations dealing with it on their end by throwing a hard limiter on the spot. It sounds bad....real bad.
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heyguido
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Location: RDU, the Geek Capitol of the South
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| Posted: Thu Feb 21, 2013 5:15 am Post subject: |
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Yeah... I've heard that, too. Obviously, THEY haven't read it, either. 
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Don Brookshire
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Gregory Best
The Gates of Troy
Joined: 04 Aug 2005
Posts: 1853
Location: San Diego area (east of Connie and south and east of Bailey)
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| Posted: Sun Feb 24, 2013 2:44 pm Post subject: |
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Worse than medicalesse or legalesse.
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Gregory Best
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kgenus
Seriously Devoted
Joined: 01 Dec 2004
Posts: 889
Location: Greater NYC Area
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| Posted: Sun Feb 24, 2013 10:59 pm Post subject: |
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This is the alignment reference level, typically what you would align a VU meter with etc. In ProTools, use a BF Essential Meter Bridge and set the Meter Calibration to -18 (RMS).
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