Knocking on wood, medium intensity. If you need a more rapid knock, just edit out the dead air in-between. Made by a hand knocking on a thin wooden wall. Recorded on a Tascam DR-05. Amplified and edited in Audacity. KNOCKS中17sec.wav 聲道:2 類型:wav knocks、wood、wooden、knocking、wall、knock、door、Knock 敲門、木、木、敲門、壁、敲、由、敲 資料來源:freesound ( https://freesound.org )