https://www.youtube.com/watch?v=pd83HhRwGuA

This video shows the engine whine I'm trying to diagnose. The noise is much louder in person than you can hear in the video. The longer you listen to the video, the more you can begin hearing the whining sound.

I tried a (very short) test, removing the accessory drive belt and the Whine continues even when alternator and water pump are not spinning. There are no other accessories.

I'm going to probe it with a stethoscope today and see if I can narrow down the location. It was suggested on another forum to unbolt the torque converter and push it back so I can isolate the noise to engine or trans, so I'm going to try that today.

Any other suggestions are greatly appreciated.
Thanks!