This actually started today. It's been for the past 2 month or so, on cold startups in the morning, i would get a belt squeal, and it would go away after a few revs, as the car warmed up
Then today, i got this whining noise while idle and when on the gas. In Neutral, the sound is still there. Any suggestions? Safe to drive?

Here is a video

 

 

welcome to the forum. the whining may be a bearing noise from the alt or anything that has a bearing being turned by the belt.