My car’s making a weird "whuă" noise that’s coming from the engine bay. It increases and decreases with engine speed so I'm thinking it has to be something that’s spinning directly from the engine. I don’t know if it’s a belt or a pump or the transmission or something else. I’ve heard it before coming from other cars but never from mine. I’m not sure what it is. Any help would be appreciated.

Here's a short video I took last night:
https://www.youtube.com/watch?v=fEdv...ature=youtu.be

My car is a 2006 base manual with little over 91,000 miles. I just had all 4 shocks and the rear tires replaced on 11/15/14. It's due for an oil change around 93,000.