Originally Posted by Artone
well can you explain what exactlly the problem is?
I can only say that feedback looping is an echo that just goes on forever and unless you can set the decay to infinity on your mixer you won't be able to do this. At least not possible on DJM 500 which i'm famiiliar with since you only have the timing control for echo.
[EDIT]:
ok, now I saw the video and I should say that even if you could set the decay amount on DJM 600 so that it never degrades you still woun't be able to edit it like in the video! I think using the sampler on your mixer is the only way to get close to this.
I hope it answers your question :)