CDs from the 1980s - high rate of "fake" detections

[Umlaut]

I'm a new fan of the app, and I certainly appreciate what it's trying to achieve. But I've consistently noticed that with CDs mastered in the mid to late 1980s, at least in the rock genre, it seems like a really high percentage of known genuine lossless audio files are labeled as fake.

I say known genuine because I bought the CDs in the US in record stores (not Russia or wherever) myself in the mid to late 1980s. Yes, I'm that old.

I notice it often when I'm using Exact Audio Copy or CueTools or even iTunes or Apple Music  to rip my personal CDs to FLAC or WAV audio. In the case of Exact Audio Copy or CueTools I'm told I got a 100% accurate rip. But it it's rock, and mastered in the early years of CDs, as many as 100% of tracks are tagged as fake.

Is this something others have noticed? Was CD mastering in that era for rock different in some way?


Thanks for looking

[Fake No Funk]

Yes, the mastering of records has changed a lot (see "loudness war" e.g. at wikipedia)...

Could you attach a frequency spectrum of such a file? Would be interesing :)

[Umlaut]

Yes, I'm acutely aware of the loudness wars. The dynamic range of CD from 1983 I most recently ripped to FLAC averages around 14 db. I'm sure that if I were to purchase it at Apple or Amazon Music, I'd get a recent remaster, with a probable average dynamic range around 8-9 db. And if was something actually released as new music - current pop - more like 4 or 6 db.

This album happens to be Sweet Dreams (Are Made of This), Eurythmics, CD pressed and sold in 1983, RCA - US release but pressed in Japan.

I'm inserting the spectrum for the title track, ID'd as fake by Fakin' the Funk. Thanks for the prompt response. I see this 85-90% fake "effect" with virtually everything from the '80s. Decreases considerably in the '90s.

[Fake No Funk]

There IS a clear cutoff around 20.5 kHz, which indeed is an indicator that a kind of filter was applied within the mastering process (if you are sure that ripping it to flac REALLY was lossless), but the rest of the spectrum looks fine.

That's why there is an option "allow cutoffs above xxx Hz" -->

From my point of view, you can either "allow cutoffs above 20 kHz" or manually mark those files as ok.