Recorded with a Tascam DR-40. A turned on blowing fan with a playing card between the blades making a rotor sound. Recorded in an isolated area. <br/>Fan.wav<br/>聲道：2<br/>類型：wav<br/>blades、wind、turbine、helicopter、fan、drone、turn、air、energy、OWI、blowing、rotor、blow<br/>葉片、風、渦輪、直升機、風扇、無人駕駛飛機、轉、空氣、能源、OWI、吹、轉子、打擊<br/>資料來源：freesound ( https://freesound.org )