キーン

耳(みみ)がキーンとなって痛(いた)いです。

My ears are ringing and it hurts. {with a screech, with a whine, with a shrill, with a ringing (in the ears), , with a sharp pain (in the head or teeth after eating or drinking something cold), getting a brain freeze}

マイクがキーンと音(おと)を立(た)ててうるさい。

The microphone is making a screeching noise and it's annoying. {with a screech, with a whine, with a shrill, with a ringing (in the ears), , with a sharp pain (in the head or teeth after eating or drinking something cold), getting a brain freeze}

新幹線(しんかんせん)がトンネルに入(はい)ると耳(みみ)がキーンとなった。

When the bullet train entered the tunnel, my ears started ringing. {with a screech, with a whine, with a shrill, with a ringing (in the ears), , with a sharp pain (in the head or teeth after eating or drinking something cold), getting a brain freeze}

耳鳴(みみな)りのせいでずっとキーンという甲高(かんだか)い音(おと)がします。

Due to tinnitus, there is a continuous high-pitched noise, like a ringing in the ears. {with a screech, with a whine, with a shrill, with a ringing (in the ears), , with a sharp pain (in the head or teeth after eating or drinking something cold), getting a brain freeze}

飛行機(ひこうき)の上(うえ)で唾(つば)をうまく飲(の)み込(こ)めなく、耳(みみ)がキーンと痛(いた)くなった。

Unable to swallow saliva properly on the airplane, my ears started ringing painfully. {with a screech, with a whine, with a shrill, with a ringing (in the ears), , with a sharp pain (in the head or teeth after eating or drinking something cold), getting a brain freeze}