A seven letter word that means a high shrill sound would be "whistle".
screech
Whistle
shriek
talkies
chime
screech
A whistle is a shrill sound. It begins with the letter W.
Whistle
Writers around the world have created words to capture the meaning of a high shrill sound. It could be a shriek, a scream, a wail, screech, or squeal.
shriek
Women
Skirling means to make a shrill or wailing sound with bagpipes.
The word you are looking for is "squeak."
Yes, a high-pitched sound can contribute to a voice sounding shrill. When the vocal cords produce a sound with a higher frequency, it can lead to a sharper and more piercing quality to the voice, which is often described as shrill.
Her shrill voice hurt my ears.The whistle made a shrill, high-pitched sound.
Cricket, crickets make shrill sounds especially in summer.
A shrill sound is high-pitched and piercing, typically produced by vibrations that are rapid and intense. It can be caused by objects vibrating at a high frequency or by a sound source with a high amplitude.