Jean-Michel Jarre – Live in Notre-Dame VR – Welcome To The Other Side – Review (Vinyl, CD, Bluray, binaural, Streaming Amazon)

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 blue arrow shows the limit corresponding to the sampling frequency of the master. We can also see that not all tracks have the same high frequency limit. The yellow arrow shows the harmonics created by the vinyl playback method.

Spectrogram Ed1 : Vinyl 2021

The Ed2 CD shows the frequency limit at 22kHz (purple arrow) with tracks rising to a lower limit (yellow arrow). The black area (white arrow) shows that there is no signal above 22 kHz, which is normal for a 44.1 kHz sampling rate.

Spectrogram Ed2 : CD 2021

The Ed7 Streaming shows the frequency limit at 20kHz (black arrow) . The black area (white arrow) shows that there is no signal above 24 kHz, which is normal for a 44.1 kHz sampling rate.

Spectrogram Ed7 : Streaming Amazon Music 2021

The Ed3 bluray concert video PCM and Ed6 binaural versions are similar in their spectrogram. We find the frequency limit at 24 kHz (purple arrow) and a track that has a lower frequency limit (yellow arrow). The black area (white arrow) shows that there is no signal above 24 kHz due to the 48 kHz sampling frequency..

Spectrogram Ed3 : Bluray Concert PCM Stereo 2021
Spectrogram Ed6 : Binaural 2021

We find the same analyse between the 5.0 version (Ed4 and Ed5) and the digital stereo versions. The purple arrow shows the frequency limit at 24 kHz confirmed by the black area above (white arrow). The yellow arrow also shows a song that has a lower cutoff frequency as for the Ed3 and Ed6 versions..

Spectrogram E4 : Bluray 5.0 DTS-HD 2021
Spectrogram E5 : Bluray 5.0 Dolby True-HD 2021

Prev Next

Part 0: Intro

Part 1: Presentation of the editions

Part 2 : Waveform and dynamique comparaison

Parts 3 : Spectrum comparisons

Part 5 : Summary, scoring and Sample

4 thoughts on “Jean-Michel Jarre – Live in Notre-Dame VR – Welcome To The Other Side – Review (Vinyl, CD, Bluray, binaural, Streaming Amazon)

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