Ed4 : CD n°5 of the later years 1987-2019 Limited Edition Box – 2019
Presentation
This is the CD of “Live at Knebworth 1990” from The Later Years 1987-2019 Limited Edition Box.
| Label | Pink Floyd Records |
| Reference | CD n°5 of The Later Years 1987-2019 Limited Edition Box |
| Format (speed) | CD |
| Type | Digital 16 bits 44.1 kHz |
| Master | Digital |
| Mastering/Pressing | Digital |
| Original recording | Digital |
| State | US |
| Year original | 1990 |
| Year production | 2019 |
Waveform
Like the Ed2 CD 2021, the curve clearly shows the compression of the dynamics compared to vinyls and streaming. With a DR8, you can see the areas (yellow) the track where the signal is compressed. The last 4 tracks are the most compressed, the other tracks are less compressed.
Spectrum
The curve represents the average frequency distribution over the sample “Comfortably Numb”. This curve is is identical between Ed4 CD 2019 and the Ed5 BR 2.0.
Spectrogram
Spectrogram is another representation of frequency versus time of a track. For each channel (right and left), horizontal axis represents time, and the vertical axis represents frequency. The amplitude is represented by the intensity (brightness) of the color of each point in the image.
The yellow arrow represents the normal collapse at 22 kHz (sampling frequency at 44.1 kHz) of the CD. The black part shows no signal above 22kHz.
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