SoX is amazing because it indeed makes very nice spectrograms which visually show how audio is encoded. It makes it easy to see if this really is a lossless FLA

SoX is amazing because it indeed makes very nice spectrograms which visually show how audio is encoded. It makes it easy to see if this really is a lossless FLAC or a crappy 192 VBC mp3 audio source. If you personally hear the difference is a completely different subject of course.