I must have too much time on my hands.....on the other hand, I don't understand all the ins and outs of dynamic range, especially when you compare (for example) a CD vs SACD.
In several cases, I have 2 copies of the same title. One might be a CD and the other might be SACD version of same title. What made me curious, was running DR (via foobar) comparing my CD version to my SACD version. Waveform below is the song Changes, by Black Sabbath. It's the third song on their Vol 4 title.
The top waveform is from the CD and the bottom is from the SACD. In general, they look the same, but if you get out your microscope (haha) you see subtle differences. Seems like the SACD might be squashed down ever so slightly. Also, at the very end of the song, you notice some more dramatic quiet spots on the CD, where the SACD seems to be "filled in" a bit more. If that makes sense....
The overall DR between the 2 is very close...but for every song, the DR value is "one less" on the SACD vs CD.....
So, Changes CD is DR 12 and Changes SACD is DR 11. And so on....
What's it all mean?
In several cases, I have 2 copies of the same title. One might be a CD and the other might be SACD version of same title. What made me curious, was running DR (via foobar) comparing my CD version to my SACD version. Waveform below is the song Changes, by Black Sabbath. It's the third song on their Vol 4 title.
The top waveform is from the CD and the bottom is from the SACD. In general, they look the same, but if you get out your microscope (haha) you see subtle differences. Seems like the SACD might be squashed down ever so slightly. Also, at the very end of the song, you notice some more dramatic quiet spots on the CD, where the SACD seems to be "filled in" a bit more. If that makes sense....
The overall DR between the 2 is very close...but for every song, the DR value is "one less" on the SACD vs CD.....
So, Changes CD is DR 12 and Changes SACD is DR 11. And so on....
What's it all mean?
![39085 39085](https://cdn2.imagearchive.com/quadraphonicquad/data/attach/34/34538-1553007798023.png)