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Old May 29th, 2008, 09:19 PM   #1
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Broadcasting audio specs

Hello, Im currently a month away from getting my 24min doco on Network television. I have the specs sheet from Ten, but thier audio requirments are confusing me.

Heres the spec: "Audio reference level (line-up level) shall be minus 20db (or 0 VU), however, minus 18db is acceptable."

Its not an analogue video, its shot on DV so I presumed it line up level would be -6db.. Will this be alright?
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Old May 30th, 2008, 05:01 AM   #2
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No. 0 VU would be analogue. It would appear the digital level should be -20 or -18db.
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Old May 30th, 2008, 05:48 AM   #3
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Quote:
Originally Posted by Colin Pearce View Post
No. 0 VU would be analogue. It would appear the digital level should be -20 or -18db.
That is a bit too low. -12 or -6 dB is more common.
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Old May 30th, 2008, 07:26 AM   #4
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Not in the US. -20db is pretty close to 0db analog. FCP defaults to -12db, which really annoys my colleagues that edit for broadcast with it.
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Old May 31st, 2008, 01:14 AM   #5
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Damn, Im gonna have to ring up a TD. Cause I also reckon -20db is really low. Im sure if I keep it at one level they sould be able to adjust it at thier end.
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Old May 31st, 2008, 10:46 PM   #6
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Blake, the specs are correct, for broadcast the audio reference level should be no higher than -18dB. What that means is: most of your audio should be around this level (people talking normally), yelling or other repeated noise at -10dB, in order to leave room for peaks like gunshuts for example.
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Old June 1st, 2008, 06:01 AM   #7
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Hey Ervin thanks for the info. So are you saying set my 1min tone to -18db? Do you know why do they have it at this level? is it something to do with a higher dynamic range?
Jeez corporate is so easy, Broadcast is a different beast altogether.
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Old June 1st, 2008, 12:58 PM   #8
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It's not only your tone that you need to set at -18dB, but most of your audio should be around that mark. Yeah, broadcast is strictly regulated, the station needs to make sure you're not too low or too loud; besides, they need to have your program lower than their commercials... you know, the yelling salesman needs a little room in order to be able to attract attention.
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