Hi djdillyc,
haven't heard the song before, but it has some great atmosphere to it.
I definitely agree with MaorLevi that a well recorded vocal to start with is extremely helpful.
They went for a very open and wide sound, which they achieved with (that's what I think) a delay which seems to be only on the left channel, with a gentle lowpass filter on it. The reverb has a relatively high cutoff frequency in order to be able to hear the sibilants in the room so much.
And of course the other basic techniques like eq, compression and deessing (notice how the sibilants a very present but not sharp, but the very high frequencies of the voice in general are still there and clear to hear.
I hope this was helpful to you,
Artless Venture ♢
