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Audio levels out of FCP for Bluray?

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Kent Beeson
Audio levels out of FCP for Bluray?
on Apr 14, 2010 at 2:06:52 am

Making a Bluray out of FCP 7...wondered what the best audio level is for such? I know with DVD's it's up to -6, out to tape it's -12 tops. But what about BluRay?

Thanks

K
http://www.effectivevideo.net


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Michael Gissing
Re: Audio levels out of FCP for Bluray?
on Apr 14, 2010 at 2:14:28 am


Levels are only part of the story. DVD and Bluray let you use right up to zero if you are game. However, how loud do you want it to play compared to say a feature film or TV doco? A feature will have dialog peaking around -30 to -20dfs and broadcast has dialog typically peaking around -10dbfs

Loudness of course, is more than just levels. Is this a mixed tracks with dynamics processing (compressor limiters)? There is also the issue of setting dialog norm values if you are using Dolby ac3.

So what is the content and market place for the bluray. It may not matter what your levels are up to a point depending on that.


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Kent Beeson
Re: Audio levels out of FCP for Bluray?
on Apr 14, 2010 at 2:17:50 am

Thanks for reply - this time it's just for me to keep a bluray of a decent HD video I shot/edited. Just wondered if DVD and Bluray were the same re: audio levels. It's mostly HD shots over a music track. So between -10 and -6, I take it is fine?


Thanks

K
http://www.effectivevideo.net


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Michael Gissing
Re: Audio levels out of FCP for Bluray?
on Apr 14, 2010 at 2:22:21 am


Yes. Staying around -10dbfs will make it similar volume to broadcast material. All digital mediums use the digital scale so when I say -10dbfs it means decibels full scale and that is a standard measure on all digital recording devices from digi beta, DAT, CD to HDCam, D5, DVD and bluray. They can all record from noise floor to zero dbfs and it means the same on all of them.

It is one standard that is an absolute in the digital world. People make it confusing by talking in VU and PPMs which are inaccurate variable standards.


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Kent Beeson
Re: Audio levels out of FCP for Bluray?
on Apr 14, 2010 at 2:24:04 am

Good deal, danke...


Thanks

K
http://www.effectivevideo.net


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