Coworker found one of those website tests that does the blind tests of 30 seconds clips. I managed to get the high quality file better than 90%. Just like watching a poorly encoded video and seeing some of the blocky shadows the trick is finding out what audio compression artifacts sound like. Then it’s pretty easy to identify. I’ll also mention what you listen on makes a massive difference. If your collection is mostly for on the go listening it doesn’t need it.

I’m also one of those people with exceptional hearing though. To the point I have to wear earplugs in some daily activities. Like the grocery store is simply too loud for me.

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