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NEW: Loudness

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Trumpetguy:

--- Quote from: Matt on January 04, 2013, 02:56:27 pm ---How about one that goes to 11:
http://www.youtube.com/watch?v=EbVKWCpNFhY

--- End quote ---

I remember that one, hilarious!  ;D And I have played with sufficiently many guitar players to know its actually like that  :D

J-a-k-e:
I have a silly question I suppose but one I want to clarify anyway. Is the replay gain adjusted volume of a playing track taken into account when the loudness function is applied?

Matt:

--- Quote from: Matt on January 04, 2013, 03:09:36 pm ---I'm not quite sure how you quantify "pink noise at -20 dBFS", or even "pink noise at 0 dBFS" for that matter.

--- End quote ---

I believe you create full volume white noise and then pinkify it (rougly a 3 dB/octave lowpass).

So the reference level is defined by the level of the white noise that you start with.

pluto:

--- Quote from: Matt on January 04, 2013, 03:09:36 pm ---I'm not quite sure how you quantify "pink noise at -20 dBFS", or even "pink noise at 0 dBFS" for that matter.

--- End quote ---

Pink noise at -20dBFS usually refers to its absolute peak level being at -20dBFS.

I can e-mail you some -20dB pink if you wish, to see if it agrees with your definition.

Matt:

--- Quote from: pluto on January 05, 2013, 05:42:28 am ---I can e-mail you some -20dB pink if you wish, to see if it agrees with your definition.

--- End quote ---

Yes, please.  I'm matt at jriver dot com.

I'd like to make it easier for users to calibrate to reference level.  Adding to our test clip creation system, and writing a wiki is probably all that will be required.

Thanks.

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