Thank you, thank you, thank you!!! I have been beating my head against the wall for months... I have been checking the waveform/files created from VB-cable and audacity (I wasn't aware of MusicScope and just brought the different files into a multi-track editor to compare them) similar to your approach. No matter what service/hi-res sound quality (CD or better from Tidal, Deezer, or Qobuz) the waveforms are visually identical. Since I haven't done an exhaustive search of albums to test, I thought I might just have been unlucky, but I highly doubt I just happened to test 5 albums that represent a tiny fraction of the issue. My theory is that many of the studios are upsampling from CD masters to get the higher quality files (up to the 24bit/192kHZ) and there isn't any real difference in the quality of the underlying music. Unfortunately, creating all of the higher quality files can be easily accomplished with upsampling, while re-mastering from source to create the files may be much more time/resource-consuming. Would love to hear other peoples experience/takes.
To the comparison of services, I have been using Tidal, Deezer and Qobuz for at least 4 months to compare the differences before deciding on which to keep long-term. The easiest decision is that Deezer is the first to go as I don't see any advantages compared to Tidal and Qobuz. I haven't had any technical issues with Qobuz and both Apps (Tidal/Qobuz) work on my DAP (android based) equally well. While they both have large collections, I find that Qobuz has a greater offering of music in my listening genres (Outside of the Beastie boys I am not a Rap listener and some would argue that isn't Rap
) and will likely be staying with Qobuz. I am also testing the new Amazon HD service and have noticed a significant improvement in sound quality compared to Amazon SD (standard streaming). I investigated the waveforms and find the same issue with Amazon - they look identical to the other streaming services no matter what stated quality. I can understand why some say they hear no difference between Tidal or Qobuz as in my hands the waveforms are identical. I think those that do detect a quality difference are likely experiencing an ascertainment bias due to knowing which service a specific track is from... Excellent article!