The vacuum machinery sound of an air popcorn machine beginning to pop the rattling popcorn kernels. Vacuum like sound, rattling and large industrial like fan. Recorded on a Tascam DR-10 空氣爆米花機器發出巨大的真空聲音 聲道:2 類型:wav air-popcorn-machine、rattling、Popcorn、vacuum、machinery、fan、ventilation、wooo、machine、air、vacuum-sound、industry、popcorn-machine、OWI、industrial 空氣爆米花機、劍拔弩張、爆米花、真空、機械、風扇、通風、的Wooo、機、空氣、真空聲、行業、爆米花機、OWI、產業 資料來源:freesound ( https://freesound.org )