Not my area, but: You could use image processing/DSP methods on a sample of spectrogram images taken from the file Visibly it’s obvious when it’s compressed,

Not my area, but: You could use image processing/DSP methods on a sample of spectrogram images taken from the file Visibly it’s obvious when it’s compressed, you get “glitchy” or “smeary” repeated artefacts I’d also look for cuts on the high end (over ~15k hz) that clip more than normal (compared to uncompressed)