ravam
ravam — the high sound, as terrible as a thunderbolt; SB 10.11.1
mahā-ravam — a great noise; SB 10.18.29
veṇu-ravam — the vibration of the flute; SB 10.21.6
ravam — whose sound; SB 10.71.17
ravām — whose roaring sound; SB 10.77.12