The video below was just posted to YT. The event occurred in Dawson Creek, Alberta British Columbia, ten hours longitudinally from Conklin, Alberta. (see map). The witness seeks an explanation and claims it sounds like a low trumpet or giant low harp. You have to turn up the volume to hear this one but it sounds very distant in the video. The sound is very creepy. He is filming from his bedroom window which means it could be a recording in his bedroom. If he was going to fake it however, he probably wouldn’t mention this. Hard to say but it does sound atmospheric. I thought at first it was a car being revved, but listening carefully I don’t think it is. An alarm? Maybe but an alarm tends to be a repeating noise. Probably not fake but it could be anything. On YT he files under “News and Politics” with poor search tags. Start listening at 0:24 on the video.
This video below from Beaver Lodge, Alberta is just one of many that have been posted to SuperSamgordon’s YT channel since back in October. I’ve been following her videos and she seems very frustrated by what she hears. The sound happens a few hours at a time. She has tried repeatedly to figure it out and has several theories. You have to listen carefully and initially I thought this was just a sky roar but it actually sounds like something else, very faint. All connected? Not sure. Some fake and some not? Can’t say. Interesting to say the least. Watch out for fakers. I already found a video this morning that plays the exact Conklin sound dubbed over a video.

Heya. After some digging, most of the latest canadian sky sound videos are all from the area surrounding Saskatchewan, Canada.
If not, see:
Manitoba video: http://www.youtube.com/watch?feature=player_embedded&v=xf4e-AxJ7nM
500km East from Saskatchewan
Conklin Video: http://www.youtube.com/watch?feature=player_embedded&v=gtLNmdZTf_g
420km North West from Saskatchewan
Edmonton Video: http://www.youtube.com/watch?feature=player_embedded&v=if15DwO5xxI
470km West from Saskatchewan
Island Lake, Minitoba:http://www.youtube.com/watch?feature=player_embedded&v=PH4hNOHi6Ko
510 Km East From Saskatchewan
What’s in Saskatchewan?
http://artsandscience.usask.ca/geology/department/seismo/quakenat.html
A series of fault lines that go from Montana to Sakatchewan, and Prairie Evaporite(solid rock salt) that covers all the areas that hear the strange sounds. Now, it’s all specualation from my part, but, just like the Bogota sound fenomena in 1697 (http://historico.unperiodico.unal.edu.co/Ediciones/100/17.html) that woke up the town and lasted for nearly 30 minutes and was followed with a sulfuric smell (hinting at magmatic, tectonic origin), these sounds in canada might be related to the Evaporite that covers the region and some tectonic/magmatic movement