in an ideal world, i think that’s where this would come in: https://forum.inaturalist.org/t/automatically-add-a-spectrogram-view-to-observations-with-sounds/3579.
i think the same problem would be true of ZC files though. even if you could upload ZC, you still would have to download and use some sort of software on your own machine to be able to interpret anything from the file.