All four audio examples are human-made, so it makes sense they emphasize the frequency range that humans distinguish best. It would be interesting to compare wi

All four audio examples are human-made, so it makes sense they emphasize the frequency range that humans distinguish best. It would be interesting to compare with natural audio to see if there’s a distinction like that found in natural vs. manmade scenes in images. (Unfortunately there are increasingly few places on Earth you can find truly natural audio with no manmade sounds audible…)