Following up on my previous post here and in the
poll thread (apologies for posting in the poll thread), I've done a few more tests.
I compared all 10 tracks of the 2011 5.1 mix and the 2023 5.1 mix. Spectrograms and track speeds are different. Therefore, performing a null test to hear the differences proved difficult. As you can see from the screenshots below, the alleged transcoding problem applies to all tracks. The speed difference between 2011 and 2023 mixes also applies to all tracks. The variation in speed is so minimal that it can't be heard, but it is a symptom that the 2023 5.1 mix is not simply a copy and paste of the 2011 5.1 mix on a new disc. There have been some errors in the process of converting from DSD to PCM, or along the way.
Just for context, the DR values are below just to highlight the 2023 5.1 mix is slightly quieter than the 2011 5.1 mix.
Code:
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Analyzed: Pink Floyd / The Dark Side of the Moon (5.1 Mix)
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DR Peak RMS Duration Track
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DR13 -13.42 dB -34.27 dB 1:08 01-Speak to Me
DR11 -2.10 dB -19.21 dB 2:50 02-Breathe (in the Air)
DR12 -2.26 dB -21.76 dB 3:34 03-On the Run
DR12 -1.92 dB -18.52 dB 7:04 04-Time / Breathe (reprise)
DR11 -2.00 dB -21.32 dB 4:44 05-The Great Gig in the Sky
DR12 -1.67 dB -19.06 dB 6:17 06-Money
DR11 -2.15 dB -18.15 dB 7:57 07-Us and Them
DR10 -4.11 dB -18.59 dB 3:25 08-Any Colour You Like
DR11 -1.66 dB -20.01 dB 3:51 09-Brain Damage
DR10 -1.96 dB -18.12 dB 2:14 10-Eclipse
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Number of tracks: 10
Official DR value: DR11
Samplerate: 96000 Hz
Channels: 6
Bits per sample: 24
Bitrate: 8074 kbps
Codec: FLAC
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I am pretty confident this is not the way this mix was supposed to be presented on the Blu-ray disc of the 2023 box set, and the only reason why I am not complaining too much is because I also own the 2011 box set.
I have also compared the two rips of the 2023 stereo remaster (one from the 5.1 Blu-ray disc and the second from the Atmos Blu-ray disc), and I can confirm the two rips are identical, and therefore, the only issue with this box set lies in the 5.1 mix, in my view.