thrumming, whirring, cranking, chugging, buzzing, purring, rumbling, perking, revving, roaring, sputtering, throb, reverberating, chirping, churning, puttering, murmuring, blaring, whistling, tinkles, droning, tootling, pulsing, clanking, burbling, booming, wafting, clanging, chiming, clacking, chirruping, powering, tune, crackling, popping, zipping, belting, crooning, bustling, warbling, trundling, jangling, spluttering, croaking, jingling, beeping, plodding, muffled, chattering, shuffling, mooing, clucking, lilts, blipping, percolating, singing, gurgling, rattling, whispering, strumming, pattering, perpetual motion, cackling, oinking, deafening, stilled, spooling, bopping, growling, groaning, bleats, hushed, creaking, rolling, ringing, bubbling, muttering, clopping, screeching, rocking, rustling, pounding, snuffling, vibrating, clinks, goosed, yammering, cooing, whizzing, galloping, unplugged, bobbing, whinnies, idles, trilling, whooshing, resonating, grooving, gabbling, sucking, belching, squawking, hum, whirr, whir, buzz, tinkling, clatter, hissing, rumble, clicking, drone, thumping, bodied, flying, banded, bellied, blinded, boned, brainless, broiled, captive, carnivorous, cat, cedar, chunky, colorful, colourful, combed, conventionalized, cow, crepuscular, crocodile

., air, hum, humming top, tra-la, tra-la-la, zing, zoom

noise, vocalizing