The best way I can describe it is a "metallic" type buzz/mild distortion. When you hear it I'm sure you'll know what I'm referring to. I've attached a link to the youtube video below and the effect I'm after occurs rapidly and disappears quickly either through some sort of automation at the end of a note or applied to a one shot sample at the following times: 00:53-00:55, 01:02-01:03, 01:13-01:14. It's use occurs throughout the song in the same loops but thats all you'd really need to hear to know what I'm referring to. Also it sounds like they're sending the Melody to a Return track with the same effect on it as well from 1:34-1:49 (the Melody being panned left to right, not the drone).
Link to song below:
http://www.youtube.com/watch?v=dg7XO1zgJHA
What is that sound? I really like the subtle use of it.
Any knowledge shared would really be appreciated. I apologize in advance for subjecting you guys to SHM
Thank You!!!!

