Class labels: Jackhammer (/m/03p19w), Motorcycle (/m/04_sv), Vehicle (/m/07yv9), Outside, urban or manmade (/t/dd00128) Strong events: (0.000s - 10.000s) Engine (/m/02mk9) | (7.047s - 8.725s) Accelerating, revving, vroom (/m/07q2z82) | (0.000s - 10.000s) Medium engine (mid frequency) (/t/dd00066) Tags: Jackhammer, Motorcycle, Vehicle, Outside, urban or manmade Strong classes: Engine, Accelerating, revving, vroom, Medium engine (mid frequency) Strong MIDs: /m/02mk9, /m/07q2z82, /t/dd00066