Dynamic range: did the knowledge base make a little mistake? [Yes, Edit made]

Roon Software Discussion
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kb for Dynamic Range
The knowledge base says: “… The computed dynamic range represents the difference between the 10th percentile and the 95th percentile of that distribution. In other words, the “top” of the range is the volume level that 95% of the track sits below, and the “bottom” is the volume level that 10% of the track sits above.” The last word in the quote is “above” but I think it should be “below”.

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I think you’re correct. The range is 10 to 95, and bottom of the range should have 10% of the track below that “bottom”.

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Thanks for the pickup @Robert_Blakely.

I think it should read “…and the “bottom” is the volume level that 90% of the Track sits above.”

I’ll edit this later tonight.

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Hi @andybob, the text of the page is still not correct. It still says “…10% sits above.” It should read “…10% sits below.” R 128 excludes the top 5% (loudest) and the bottom 10% (softest) values from the sorted distribution of loudness values when computing the Loudness Range. I expect Roon does the same.

(https://help.roonlabs.com/portal/en/kb/articles/dynamic-range#How_is_Dynamic_Range_computed)

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Thanks @Miller_Abel ,
Mods can no longer edit the Knowledge Base, so I’ll let Roon Staff know.

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When someone edits this, it would be great if they could add that this only applies to local files and the dynamic range is not visible for streaming albums. And the new Mastery series states incorrectly that the dynamic range value can be compared for streaming albums:

Either this is incorrect or it’s a bug that it isn’t displayed for streaming versions :slight_smile:

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