@jrp I think you don't need any ears for it. 'Just' the theory behind digital audio.
@jrp @audiopro Not sure what you mean by audio engines, but I don't think there is difference in sound, comparing same soundfiles, no matter which DAW.
@jrp @audiopro On Linux you've Ardour, Mixbus, Reaper, Bitwig, Qtractor and more.
@avlap2