Dynamic Range - no loudness - no quiet

I use JRiver in my 2 ch. home system playback and plan on trying that experiment of comparing songs with higher and lower DR numbers. Didn't even know I had that info available. As I've said before, I've long suspected that the problem with digital recording and playback is in the application, not the theory.
 
Cool site Chris and you can sort from least compressed to most.


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Unworthy said:
Man, that's long list! In scanning about 10 pages it has become clear to me why my SRV and Steely Dan disks are among my better sounding CD recordings. Looks like Michael Jackson (or his engineers) got it, too.
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Indeed long but useful, my thanks to Unworthy
and CPP!


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Went home last night, set JRiver to display DR and, sure enough, the recordings I consider some of my best sounding CDs have higher dynamic range. Clapton's Journeyman is my best of his CDs and the numbers ranged from 11 to 15 on all tracks. Makes me wonder if part of the MQA secret is to correct overcompression mistakes. Might as well since they're starting from master recordings.
 
Unworthy said:
Went home last night, set JRiver to display DR and, sure enough, the recordings I consider some of my best sounding CDs have higher dynamic range. Clapton's Journeyman is my best of his CDs and the numbers ranged from 11 to 15 on all tracks. Makes me wonder if part of the MQA secret is to correct overcompression mistakes. Might as well since they're starting from master recordings.
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Makes me wonder if part of the MQA secret is to correct overcompression mistakes
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Makes sense to me
 
Randy Myers said:
I believe that Roon now has a DR rating that displays on each album when they are playing.
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This is great. I wonder where they get the data? Do they measure it while it's playing? Access some database? Any idea?
 
Randy Myers said:
I am not sure how the DR is determined. There is a setting within the Roon setup to display DR or not.

https://kb.roonlabs.com/Dynamic_Range
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"""
How is Dynamic Range computed?

As with Volume Leveling Roon's dynamic range calculation is done based on R128 standards. In technical terms, Roon's "Dynamic Range" is the same as R128's "Loudness Range".
That there are older methods of computing Dynamic range out there--most commonly by measuring the "Crest Factor".
Crest Factor measurements reflect the difference between the average volume and the peak volume--so they are easily swayed by periods of silence or near-silence (which distorts the average), and by short-duration peaks--which may not represent the volume of the loudest parts of the track accurately.
The R128 method is more resillient. It begins by computing the statistical distribution of loudness values present at different points in the track, ignoring periods of silence. 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.
Though both methods portray roughly the same information, Crest Factor values aren't directly comparable to values produced using the R128 method. "'

Thank you Roon Website,

And for those really techy R128 https://tech.ebu.ch/docs/r/r128.pdf
 
Thank you Chris. I did not have time to read through their explanation as of yet. As is typical of Roon, they tend to be very transparent and explain their reasoning on using various methods.
 
Wait till you read through the ebu doc, its really transparent , plus there are a few other docs associated that you need to read through, for your reading pleasure. To techy for this retired techy person.
 
Well this techy guy is not quite retired yet, ala why no time to read through everything yet :)...
 
Randy Myers said:
Well this techy guy is not quite retired yet, ala why no time to read through everything yet :)...
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To busy watching the tree guys cut down the rest of my oak trees that were impacted by storm surge from Mathew. It like throwing good audio buying money right out the window, or in this case out into the open air. . :disbelief:
 
Ouch.... well wife "needed" custom made cabinets in the garage.... basically, there went my thoughts of a new amplifier (was seriously thinking, hmmmm Audio Research VT80)....
 
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