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Volume level in FCP XMLs

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Volume level in FCP XMLs

Subject: Volume level in FCP XMLs
From: Rainer Standke <email@hidden>
Date: Mon, 7 Apr 2008 10:39:37 -0700

Could someone please shed light on the math behind the volume levels in FCP XMLs? Seems like 0 dB correspond to an encoded value of 1, and the level turned down all the way (infinity?) must correspond to level 0, since that seems to be the minimum. The maximum of +12 dB seems to correspond to 3.98109.

How does the math behind this work? How do you calculate the value to encode for, say, -15 dB? I am looking for a formula here.

Thanks,

Rainer
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