In Original sound that NO high-frequency squeak, it only in preview version, I think it was in automaticli coding by this web site.
recorded on Tascam DR-22WL B_rain _&_ thunder_lightning_close _&_ cars_sirens_loop.mp3 聲道:2 類型:mp3 loop、close、cars、storm、roof、weather、lightning、rain、thunder、nature、field-recording、sirens 環、關、汽車、風暴、屋頂、天氣、閃電、雨、雷、性質、現場記錄、警報器 資料來源:freesound ( https://freesound.org )