Vaughn's hands were a blur, and he was starting to emit a high-pitched whine like the buzz of a circular saw.
Hodgman, Ann MY BABYSITTER BITES BACK (1995)
The bilge pumps had cut in now, their high-pitched whine distinctive over the deeper roar of the main engines.
Lunnon-Wood, Mike LET NOT THE DEEP
As the speed increases, the only noise is a gentle high-pitched whine.
The Sun (2009)