I've heard of drives 'beeping' before, and it's not from a beeping speaker. This happens when the heads are stuck to the platters while the controller board is trying to move the head actuator arm.

When the heads get stuck like that, the voice coils of the actuator arm end up resonating high frequency sound much like a speaker.

The condition isn't good, that's for sure. I've seen where stuck heads can sometimes be unstuck by putting the drive in the freezer overnight, then plugging it up while still totally frozen.

But that trick doesn't always work, and sometimes it requires a little external force like tapping the corners of the drive on a desk to help free it up.

Or pay a data recovery center a butt load of money to open the drive up and salvage the data, either way is a compromise and the drive shouldn't be considered reliable even if the heads are freed up.