The importance of the Dynamic Range Database? Maximum score?

Mar 17, 2015 at 2:16 PM Post #18 of 50
Hi Beya
Is DR 23 the maximum for a CD?
And I always thought that Ry Cooder's ''Bob 'til you drop'' was the first digital recording.

  Bop till You Drop is Ry Cooder's eighth album, released in 1979 (see 1979 in music). This was the first major-labeldigitally recorded album of Pop music. It was recorded on a 32-track machine built by 3M.[5][6]

The album consisted almost entirely of covers of earlier R&B and rock'n'roll classics, including Elvis Presley's "Little Sister" and the 1965 Fontella Bass-Bobby McClure hit "Don't Mess Up a Good Thing", on which Cooder duetted with soul star Chaka Khan, who also performed on the only original track on the album, "Down in Hollywood".

 
Mar 17, 2015 at 4:30 PM Post #19 of 50
DR23 is the maximum for a 'normal' CD. I don't know the possibilities with Blu-ray, Gold CD or SACD. Solid state drives have probably even much greater potential in this area, but I'm no expert so I might be wrong.
 
''Bob 'til you drop'' is the first digital recording of pop music. Flim & the BB's made the first U.S. non-classical digital release in 1978. They were not the very first to use digital recording, but they were the first band that used digital recording. This first album was only released as an LP record and the experimental digital recorder was disassembled so no CD re-issue can be made. The first Song of the A-side is this one:
 
 
Mar 22, 2015 at 8:41 PM Post #21 of 50
thank you Beyakusenn, very informative.
 
  DR23 is the maximum for a 'normal' CD. I don't know the possibilities with Blu-ray, Gold CD or SACD. Solid state drives have probably even much greater potential in this area, but I'm no expert so I might be wrong.
 
''Bob 'til you drop'' is the first digital recording of pop music. Flim & the BB's made the first U.S. non-classical digital release in 1978. They were not the very first to use digital recording, but they were the first band that used digital recording. This first album was only released as an LP record and the experimental digital recorder was disassembled so no CD re-issue can be made. The first Song of the A-side is this one:
 


thank you Beyakusenn, very informative.
Why did they dissemble the digital recorder?
 
Mar 24, 2015 at 4:12 AM Post #22 of 50
 
thank you Beyakusenn, very informative.
Why did they dissemble the digital recorder?

You are welcome.
 
I don't know why it was disassembled, but I know it was a hand-built experimental machine from 3M that was made to gain experience of digital recording. My guess would be that they wanted to use some of the components for their first commercially available digital recorders.
 
Sep 2, 2015 at 2:46 PM Post #23 of 50
  This ones seems to have the best DR:
http://dr.loudness-war.info/album/view/71541
http://dr.loudness-war.info/album/view/67126
http://dr.loudness-war.info/album/view/63179
http://dr.loudness-war.info/album/view/70555
 
They do sound very airy, open and effortless.

Not my favorite music but well recorded. Maybe even too much dynamic range
redface.gif

 

 
Oct 25, 2015 at 11:40 AM Post #24 of 50
the new MacLeod is not in the database yet but sounds to me as it will score at least as good as There's a Time


http://www.hdtracks.com/exactly-like-this
 
Quote:
  I have uploaded one of my favorite hi-res downloads to the Dynamic Range Data base;  http://dr.loudness-war.info/
It is the Batik album  ''The old Man and the Sea'' .
It had a maximum score of 19. The DRData base suggest that it is the last tune that has the maximum score.
You can hear a bit of it here :http://www.soundliaison.com/
 
I was looking a bit around on the Database and could not seem to find an album that had a higher score and very few that reached the 19  that ''The Old man and the Sea'' got.
An Old favorite of mine, Doug Macleod's ''There's a Time'' got 19 as well.( http://www.hdtracks.com/)
 Is there a piece of music that reaches 20? or is 20 not possible? and since so few albums comes close to the 19 that the Batik album got, is that because they all have been using compression even though they might claim other wise?
Or are they just playing less dynamic?
 
And which albums with a high score is your favorite?
 

http://www.soundliaison.com/
 

http://www.hdtracks.com/catalogsearch/result/?q=doug+macleod+there%27s+a+time

 
Nov 8, 2015 at 7:30 PM Post #25 of 50
I actually think that I can hear when compression is applied or at least when it is used too much.
 
I do not think that this Sound Liaison album has any or if so at least very very little compression applied. It is simply 3 musicians who has played together for years and adjust their levels
 to each other...nobody plays too loud...it is that simple.
 
 
Witmer TrioEn Azul [24/96] 
i​
2015
14​
12​
16​
losslessDownload


 
 

see Rad Bennett's review;
 Their newest program is titled En Azul and features the Witmer Trio, Cajan Witmer – piano,
Han Slinger – double bass, and Maarten Kruijswijk – drums. The trio has been together for 20 years and all the players sound very comfortable in their skins. Their emphasis is on melody with ornamentation and variation that heightens a sense of melody rather than distracting from it.  And they’ve picked some terrific tunes to work with – Carioca, TheGentle Rain, Moon River, Moonglow, Rhapsody in Blue, Recado, and St. Louis Blues, to mention a few. The playing is delightfully impeccable and the recorded sound nearly so.  The trio sounds like it’s playing in a real space and is nicely spread between speakers with no exaggeration. The piano sound is perfect as is the sound of the many percussion instruments that are so imaginatively employed. The bass is solid; I could use just a tiny bit more focus on the attacks. Sound Liaison recordings are only available as high quality downloads. Many download formats are available including DSD and PCM 24bit/96kHz stereo. If you’re searching for real sounding intimate jazz, give the work of these folks a try. You’ll not be disappointed and it’s so good-natured, I’ll bet it will put a smile on your face.

 
Nov 8, 2015 at 8:09 PM Post #26 of 50
Here are a couple of CDs I found with tracks having DR > 23:
 
----------------------------------------------------------------------------------------------    
 Album: Arditti String Quartet Edition 31
 Artist: Brian Ferneyhough
----------------------------------------------------------------------------------------------    
DR    Peak    RMS    Duration    Title [codec]    
----------------------------------------------------------------------------------------------    
 DR17     -1.44 dB     -24.24 dB    3:00    01 - Fourth String Quartet - 1      [flac]    
 DR16     -1.96 dB     -27.12 dB    5:49    02 - Fourth String Quartet - 2      [flac]    
 DR16     -1.77 dB     -24.31 dB    3:23    03 - Fourth String Quartet - 3      [flac]    
 DR17     -2.32 dB     -28.00 dB    8:52    04 - Fourth String Quartet - 4      [flac]    
 DR27     -5.25 dB     -40.69 dB    1:58    05 - Kurze Schatten II for guitar - 1      [flac]    
 DR26     -5.21 dB     -40.69 dB    1:10    06 - Kurze Schatten II for guitar - 2      [flac]    
 DR26     -7.02 dB     -43.37 dB    2:02    07 - Kurze Schatten II for guitar - 3      [flac]    
 DR23     -6.02 dB     -37.15 dB    2:29    08 - Kurze Schatten II for guitar - 4      [flac]    
 DR24     -5.55 dB     -35.37 dB    2:10    09 - Kurze Schatten II for guitar - 5      [flac]    
 DR20     -8.57 dB     -34.66 dB    2:50    10 - Kurze Schatten II for guitar - 6      [flac]    
 DR25     -5.03 dB     -39.47 dB    3:12    11 - Kurze Schatten II for guitar - 7      [flac]    
 DR26     -0.00 dB     -31.48 dB    11:56    12 - Trittico per G.S. for double bass      [flac]    
 DR17     -4.95 dB     -28.30 dB    13:56    13 - Terrain for violin and wood instruments      [flac]    
----------------------------------------------------------------------------------------------    
 Number of files:    13
 Official DR value:  DR22
 
    
 
----------------------------------------------------------------------------------------------    
 Album: November Steps ¤ Eclipse ¤ Viola Concerto
 Artist: Toru Takemitsu
----------------------------------------------------------------------------------------------    
DR    Peak    RMS    Duration    Title [codec]    
----------------------------------------------------------------------------------------------    
 DR21     -0.08 dB     -30.46 dB    19:05    01 - Novemeber Steps for orchestra with shakuhachi and biwa      [flac]    
 DR27     -0.20 dB     -36.38 dB    10:56    02 - Eclipse for shakuhachi and biwa      [flac]    
 DR18     -0.71 dB     -25.62 dB    16:12    03 - Viola Concerto «A String around Autumn»      [flac]    
----------------------------------------------------------------------------------------------    
 Number of files:    3
 Official DR value:  DR22
 
Nov 9, 2015 at 2:47 PM Post #28 of 50
  I didn't expect to see such high dynamic ranges from a CD. Well, technology has advanced for CDs as well.

 
The theoretical max for the Redbook format is much higher than any of that; for instance this waveform is DR58.
 
Nov 10, 2015 at 8:10 AM Post #30 of 50
  That seems to make sense. I remember reading somewhere that under ideal conditions, the theoretical maximum for CDs (16 bit) would be DR98. I wonder at what dynamic range the background noise starts becoming intrusive in music.

 
If I'm doing the math right based upon this, the theoretical max should be something like:
Code:
 20*log10(sqrt(6rm)) r = sample rate m = track length in minutes
 
The lowest RMS values I've seen are around the -65dBFS mark, which should leave enough room to keep the noise floor out the equation for a normal listening room (30-40 dBA) whilst keeping the loudest parts blisteringly loud.
 

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