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EBU Technical Recommendation R68 ?
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nowinner
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#1
16th May 2007
Old 16th May 2007
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EBU Technical Recommendation R68 ?

How do I need to mix (at what levels) when I have to meet these recommendations ??

"EBU Technical Recommendation R68"

Is it -9db on Digi Beta or ??

Would be very thankful for any help here.

Thanks
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16th May 2007
Old 16th May 2007
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I m not having a very scientific answer but i had to deliver shows for France for 2 different channels and one of them, the Big one was ok with those specs.

max peak level:+9 over 0vu
average prog. level : -9 to +2 Vu for intelligible dialogue


for the digi beta your 0vu should be at -18dbfs
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16th May 2007
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Exactly.
0 VU digital = -9 dBFS. This gives 9 dB of headroom (same as in analogue).
Reference level -9 VU = -18 dBFS. This is what the meter should show when sending test tone from SQN or other mixer to the cam/recorder.
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16th May 2007
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Quote:
Originally Posted by pkautzsch View Post
Exactly.
0 VU digital = -9 dBFS. This gives 9 dB of headroom (same as in analogue).
Reference level -9 VU = -18 dBFS. This is what the meter should show when sending test tone from SQN or other mixer to the cam/recorder.
hunh?

reference would be 1kHz sine @-18dBFS=0VU (=+4dBU).
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16th May 2007
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Yeah, Tom's right
Reference tone is 1kHz sine @ -18dBFS = 0VU
Headroom = 9dB, so program audio should not peak above -9dBFS
Kuba
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16th May 2007
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Yeah, Kuba's right.





Hi Kuba!
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16th May 2007
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17th May 2007
Old 17th May 2007
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OK, thanks guys.

So, to say it simple. When I mix and look at my Waves PAZ Analyzer my level should be around -9 when put in RMS mode right ?? This should be loud enough ??

You see that is my main worries, that the commercial is not as loud as the others...

Thank you

PS. I know that I am a total loser when it comes to all this dBu/dBfs and stuff. Is there a good website were I can read up on all this ? It is all so very confusing to me right now...
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17th May 2007
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My dear neighbour,
if you do not have any experience or have a little, indeed your spot could be not as loud as others because:
if you do not compress it enough (what is enough?), it won't be loud - it's obvious
or
if you compress it too much, the broadcast sound mixer will turn it down, or it will bu turned down by broadcast processor;
so...
learn from the others, record things from air and play them in the studio; record your things being aired and compare it with mixes you send to broadcast;
MANAGE TO DO INTERSHIP WITH AN EXPERIENCED MIXER - this way you realize what good sound is; read this forum and find another ones (DUC for example);
listen, listen, listen and don't look at the analizer too often;

About PAZ - what curve do you use for RMS metering, and what time response; you will get different readings with A, B, C and different time...

We live in times, when most audio-related tools (sofware especially) are easy to learn and operate, but the same as in the old days, learning how to get a good sound and understanding what really good sound is, still takes a lot of time (years I mean).

Best regards
Kuba


Ps. If your peaks are at -9dBFS and your RMS readings are also at -9 - the mix is damn hot!
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19th May 2007
Old 19th May 2007
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Thanks for that answer neighbour !

Well I set the PAZ to Weight A and response to 40...

The signal is peaking at 0 but the RMS is around -10....

I will try to compare my mixes with onair stuff. thanks for the tipp !

Cheers
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