whir, hum, clatter, thrum, whoosh, clunk, hiss, crackle, gurgle, screech, clack, chirrup, droning, roar, beeping, burble, clang, whump, clop, whine, purr, wail, clanking, tinkle, throb, klaxon, plink, murmur, growl, tintinnabulation, chirp, thwacks, shrilling, din, crump, thuds, hoofbeats, pattering, birdsong, rumble, noises, shriek, juddering, metronomes, cacophony, splutter, blare, jittering, blat, chattering, scritch, vroom, claxon, gabble, foghorns, rustlings, squawk, trill, clonk, cacophonic, sibilants, buzzes, splosh, squeals, warble, clinks, chitter, staccato, vibrating, thump, blipping, creaks, mewing, thundering, tacho, clangor, chuff, birdcall, clomp, whinnies, oinks, tootle, boop, kettledrums, stillness, cawing, neighing, whimpers, yowl, glissandos, tinny, pulsing, fluttering, flickering, throaty, beetling, yelping, snuffling, eddying, pinging, pneumatic drill, pulsations, humming, buzz, rattle, whirring, rumbling, rustle, creaking, hissing, rustling, whistling, crackling, ringing, 00, 03, 05, 98, br, burr, cocks, coo, gr, hi, nbtstat, pr, ranger, reddy, rr, sh, thr, wa

emit, go, let loose, let out, sound, utter

birr, churr, whiz, whizz