Humming sound in the cabin

Quick question...
Anytime I turn sharply or take a driveway too fast I hear a little humming ring noise. It only lasts a few seconds and is pretty faint.
Any ideas as to what it is?

 

I have something very similiar in my 2015 Tacoma DC TRD Sport. I get this random buzzing noise throughout the cabin. Like the speaker is picking up the engine revs. It only happens when the vehicle is moving and I accelerate. I cant hear it if the windows are down. When the radio is on I can barely hear it. I find I start listening to it more and more. Its like there is a loose rattle, very low pitch vibration. It is driving me crazy trying to find the source. Anyone else experience this? Any advise would be appreciated.