Long clip of helicopter flying in, landing, and taking off again. I left a lot before and after so you can fade it in and out as much as you want. Used iZotope RX5 to remove loud bird sounds during the main portion of the helicopter sound.
Helicopter02.wav
聲道：2
類型：wav
landing、take-off、helicopter
降落、脫掉、直升機
資料來源：freesound ( https://freesound.org )