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 )