The engineer noticed a peaky audio signal during the conference call and adjusted the microphone.

工程師在電話會議中發現音訊訊號尖峰很多，於是調整了麥克風。

Our sales chart looks peaky this quarter, with sharp spikes around each holiday promotion.

我們本季的銷售圖表尖峰很多，每次節慶促銷前後都出現急遽上升。

Customers complained that the new headset produced a peaky, harsh sound at high volume.

顧客抱怨新耳機在高音量時聲音尖銳刺耳、高頻突出。