If its a manual tranny, sure sounds like a throwout bearing about to fail.
Same with mine! But mine also happens when coasting in a gear. I notice it more when RPM's are around 1.5k to 2k.I have the same noise I think. Mine occurs when I first engage a gear, for example, I would be at a light and begin to drive in first gear and ill hear it as I engage the accelerator and come off of the clutch. It mainly happens in the "beginning" of the gear and then goes away and rarely ever happens in 4th,5th, or 6th gears.