Part 4 : Spectrogram comparaisons
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.
For the spectrogram of the Ed1 Vinyl, the yellow arrow as for the spectrum , reveals the limit around 20 kHz due to the digital mastering. Beyond 20 kHz (white arrow), there is noise or distortion due to the vinyl playback method.
The three digital versions (CD, Streaming and MP3) are similar (see the three curves below). We find a cut at 22 kHz (yellow arrow) due to the sampling frequency with the presence of the black band (white arrow). But the black arrow indicate the specificity of the MP3 (Ed2) encoding with a cut off at 15 kHz.
Part 1: Presentation of the editions
Part 2 : Waveform and dynamique comparaison
Quite interesting, thank you! I assume the CD mastering is the same as the mp3s, comparing the DR values.
“Everybody Wants to Rule the World” on the old deluxe was in fact taken from an old vinyl release, and therefore never sounded particularly good. “Mothers Talk” might be a fairer comparison since that was a new mix already in 2014.
By the way, Disquaire Day is called Record Store Day in English – for those wondering.
Thank you for your comment and informations. Indeed, Disquaire Day is the French name and Record Store Day in English as I had indicated in the news of June 12, I will clarify in this review.