sound of a starting up plotter recorded with zoom h4n. recoding is unprocessed except normalising and trimming plotter.wav 聲道：2 類型：wav construction、mechanical、machinery、industrial、field、machine、work、tool、plotter、noise、recording、makerspace 施工、機械、機械、產業、領域、機、工作、工具、繪圖儀、噪聲、記錄、makerspace 資料來源：freesound ( https://freesound.org )
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