FM has always had alot of background noise when the signal is weaker. The white noise on FM is louder than on AM (if there is nothing causing interference). It's the nature of the beast. This whole argument to me makes me wonder if people weren't saying the same thing about FM stereo. Everyone know's it has more static than the mono signal when the station is weaker. I've learned to put up with the noise and it's really only noticable when there is no sound or the dj is talking. During music you just don't really hear it, with the exception of certain genres. I listened to the audio clips, and yes I did notice something, but in the neighbourho0d I live in...noise like that is the norm on most radios. I have 9 local fm stations that sound like that...compeletely inaudible on most radios. We don't have IBOC here in Canada, and from what I've heard, it really wouldn't increase the noise at all...not on FM. The noise comes from living a few blocks away from 5 local FM transmitters. I either stopped trying to hear those stations until I was further away from all the bleedover or just used a better radio. I don't like what I'm hearing from AM IBOC. But the FM seems to be an improvement. Anything that can fix multipath on FM IS an improvement in my opinion. Many people note that IBOC has done that for them. That may be why the CRTC is considering it for FM. This would be the perfect place to see once and for all what happens....Canada is the land of 3RD adjacent fm radio. Every station is pretty much a 3rd adjacent to someone local here.