I have run into quite possibly the most frustating problem I've ever run into these last few days. I'm going to throughly explain the problem because I need serious insight and expertise, I've exhausted all the options I can come up with. Thank you in advance for reading and attempting to help. I have setup my recording room for vocals. As soon as I set up the mic and started to test it I immediatey heard my voice had an "echoy", "slap back", almost robotic result coming through it from what seemed like a horrible case of room acoustics. I first tried moving the mic everywhere in the room, no luck. I then tried changing microphones and moving it everywhere, no luck. I tried changing the mic cables, no luck. I changed pre-amps, no luck. I changed projects in Pro Tools thinking maybe there was glitch in my vocal setting(s), no luck. I literally made a tent over the microphone with blankets to cut out all room ambience and tried all the above while the microphone was under the blanket and still...no luck. The problem has persisted. I am currently using a Digi 002 control interface, a G5 iMac running Pro Tools LE 6.9.2 with 99% CPU usage and 1024 samples in my playback engine. The only conclusion I can come to is it must be some sort of setting in my Pro Tools. My vocal track has no buses assigned to it or effects. I can't come up with anymore information to help. Anyone that has some kind of remote option to try, please post it, I've gotten very frustrated with the problem. Thank you.