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Dynamic Comparison SACD vs CD - Part 5 - page 2

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Using the first track (What A Shame), here are the relative differences using the "Analyze | Statistics …" function on Cool Edit:


CDR

CD

SACD

Peak Amplitude (dB):

-4.26

-3.68

-2.93

Minimum RMS Power (dB):

-80.92

-88.22

-85.07

Maximum RMS Power (dB):

-13.57

-12.08

-11.33

Average RMS Power (dB):

-27.30

-26.13

-25.40

Total RMS Power (dB):

-25.63

-24.38

-23.64

Maximum - Average RMS Power (dB):

13.73

14.05

14.07

Maximum - Minimum RMS Power (dB):

67.35

76.15

73.74

As you can see, the SCD-XA777ES reproduces both the CD-R and the CD layer of the Hybrid disc reasonably faithfully compared to the digital rips (except with a higher noise floor). The statistics also confirm how close the CD and SACD layers are. The SACD layer is obviously slightly louder, and this could account for me finding Patricia's vocals a bit more engaging on SACD.

Track 11 (Nardis)

Here is a close-up showing that the SACD has much higher peaks on Track 11 ( Nardis ):

chart2-1a.gif chart2-1b.gif
omparing an excerpt from track 11 on CD (left) and SACD (right)

Intrigued, I looked at the digital rip of track 11 from the CD layer, and found one possible explanation: evidence of clipping on the CD layer limiting the dynamics of that track. This is confirmed by the "Analyze | Statistics …" function on Cool Edit:


Left

Right

Average

Min Sample Value:

-32768.00

-32768.00

-32768.00

Max Sample Value:

32767.00

32767.00

32767.00

Peak Amplitude:

0.00

0.00

0.00

Possibly Clipped:

8

4

6

DC Offset:

0

0

0

Minimum RMS Power:

-94.33

-94.32

-94.33

Maximum RMS Power:

-10.62

-10.74

-10.68

Average RMS Power:

-26.47

-25.96

-26.22

Total RMS Power:

-23.71

-23.31

-23.51

Actual Bit Depth:

16 Bits

16 Bits


Maximum - Minimum RMS (dB):

83.71

83.58

83.65

Maximum - Average RMS (dB):

15.85

15.22

15.54

Here is the graph of the CD recording of track 11:

chart2-2.jpg
Recording of track 11 (Nardis) – CD layer of Hybrid disc.

 

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