new vacuum sound "constant"

[Mike_Shepard]

Hey all I'm new here. I have a 2001 tahoe lt with 171k we've owned it since 124k and have never had any problems till this morning. Upon starting it I noticed a rather odd and loud vacuum sound. I've checked all hoses and everything seems fine, I haven't been under the hood since last oil change 2 months ago. It's constant and increases as the throttle is increased.

I'm wondering has anyone ever had this sort of issue? To me it sounds like an intake basket going/gone bad but wanted more feedback. Thank you for any and all help.