Screech is a harsh high pitched scream which is related to anger.
Bleep - Granerica
High pitched
if he's kind of shy... has a low tone... or kind of high pitched like he's nervous
A high-pitched shout is often referred to as a shriek or a scream. It is a loud vocalization with a piercing tone that typically conveys a sense of urgency, fear, or excitement.
No, "whined" is a verb. It describes the action of expressing discontent or discomfort in a high-pitched, complaining tone.
Tinnitus
This is an attention-getting bark. A Yorkie will bark with a high tone when trying to communicate a need, such as wanting to go outside or wanting to play.
where is the humming noise coming from? if it's coming thru the speakers and matches the rev tone of the engine, then you have a bad ground in your stereo.
a low pitched sound or tone
You seem to be describing Tinnitus. Seek the help of a physician as it may be treatable in its early stages.
King Julien from the "Madagascar" movies has a French accent. It is a stereotypical French accent with a high-pitched and flamboyant tone.