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[chrisjj]

JRiver is using Dynamic Range (R128) here because it probably has more meaning to people than Loudness Range.

That's really sad if true. Quantity of low-quality meaning is not worth having.

[InflatableMouse]

That's really sad if true. Quantity of low-quality meaning is not worth having.

A few posts below that this was posted:

Next build of MC19:
NEW: Added DR dynamic range analysis to the audio analyzer.

[chrisjj]

A few posts below that this was posted:

That does not itself demonstrate that JR is using "Dynamic Range (R128)" to refer to R128 loudness range. I hope JR will say what it does mean by "Dynamic Range (R128)".

[6233638]

That does not itself demonstrate that JR is using "Dynamic Range (R128)" to refer to R128 loudness range. I hope JR will say what it does mean by "Dynamic Range (R128)".

The Dynamic Range (R128) field uses the R128-derived Loudness Range (LRA) data which gives you the dynamic range of the track. (If I recall correctly, it uses the 95th percentile for peak volume and 10th percentile for minimum volume to calculate this)
The Dynamic Range (DR) field gives you TT-DR derived Crest Factor measurements, which is a measure of peak-to-average volume and may be indicative of how dynamic the mastering of a particular track is.

[mwillems]

The Dynamic Range (R128) field uses the R128-derived Loudness Range (LRA) data which gives you the dynamic range of the track. (If I recall correctly, it uses the 95th percentile for peak volume and 10th percentile for minimum volume to calculate this)
The Dynamic Range (DR) field gives you TT-DR derived Crest Factor measurements, which is a measure of peak-to-average volume and may be indicative of how dynamic the mastering of a particular track is.

6233638 is exactly right, what JRiver calls the R128 dynamic range is, to my understanding, the same as the r128-spec loudness range.  Here's a recent thread on the subject that includes links to the R128 spec and some discussion of the implications of the differences between the two DR measures:

http://yabb.jriver.com/interact/index.php?topic=84489.0

[chrisjj]

The Dynamic Range (R128) field uses the R128-derived Loudness Range (LRA) data

I'd be interested to know the source of that info.

[Hendrik]

I'd be interested to know the source of that info.

You can believe him.
DR (R128) is the R128 Loudness Range value.

[chrisjj]

You can believe him.

Perhaps when I see the source.

[Hendrik]

I looked into the actual source code of MC that computes those values. If you don't want to believe that, I don't know what will convince you. Compute the values with another EBU R128 compatible software and compare numbers?