I've been poking around in the unpacked assets, and I'm looking for the glitch damage sound. I found a damage folder full of files like "acid.damage", "bite.damage", and "direct.damage", but I think that's the sounds for types of projectiles, weather etc. once they hit your player (I could be wrong). I looked across google for answers and came up dry, so I came here seeing if the Starbound modding community could lend me a hand. (I want to change a single sound file, and yet I have spend 2 days doing this. I better get some good modding experience out of this!)
sfx/humanoid/ The files you want are robothurt_male1.ogg to male3.ogg and female1.ogg to female3.ogg (though the glitch PLAYERS just use robothurt_male1.ogg and robothurt_female1.ogg)