Bitem changed completely when he attained the WH; he quickly came to visualize himself as a dictator - a superior being who had to force his superior will on others. His staff has not attempted to disavow him of this view.
While dementia has crept into his voice, what voice prints will show is his quick evolution into seeing himself as an authoritarian figure. 'Don't get in his way!'
Slo Joe always spoke nonsense
Clarence Thomas on Biden...
"I have no idea what he was talking about"
Biden at the Clarence Thomas hearings:
https://youtu.be/rca-_DOgBPU