![]() ![]() There was recently a post on another forum about "fake" 24-bit FLAC files and some tool that's supposed to tell you the "true-original" format. Of course that's not possible if you don't have the original, and often a good quality MP3 can sound identical to the original (even if the spectrum looks different). The best way to identify a quality problem is to compare the unknown file to the original in an ABX test. Looking at spectrum usually doesn't tell you much about the sound quality, or at least it doesn't tell the whole story. The problem is - When you hear a compression artifact it's not usually the loss of high frequencies that you hear. It's easy to "fake" if you really try but you're not going to restore the sound quality. Or, someone can take a "regular" MP3 and use an harmonic exciter effect (or other effect) to "regenerate" high frequency content and then save-as MP3. There are MP3 encoding options that allow you to keep the full spectrum* and there are other lossy formats that keep the whole spectrum. Audacity 2.2.1 64-bit from main repositories of Ubuntu Mate 18.04 I think possibly they were trying to claim maybe it was made lossy and then converted to a FLAC after, which of course wouldn't re-make it lossless which maybe means not "fake" as they claim? If that is what they mean, then when the dialog box appears and I hover over the graph with my mouse, the 'Cursor' value goes as high as 21479 Hz. So I'm thinking possibly they mean to use the menu option Analyze | Plot Spectrum ? ![]() I get the impression perhaps English isn't their first language.Īlso they say (again. They go on to say (and yes this is their spelling). Posted this on IRC but I think it's a slow day.īasically I've found a FLAC online and oddly a comment I've seen says that this particular FLAC file is "fake" (their terminology, not mine!)Īdditionally claiming that Audacity can somehow tell you if a FLAC is "fake" or not. ![]()
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