gasped — a sudden, short intake of breath, as in shock or surprise.
rasped — to scrape or abrade with a rough instrument.
panted — to breathe hard and quickly, as after exertion.
rattled — to give out or cause a rapid succession of short, sharp sounds, as in consequence of agitation and repeated concussions: The windows rattled in their frames.
coughed — Simple past tense and past participle of cough.
puffed — a short, quick blast, as of wind or breath.
hissed — to make or emit a sharp sound like that of the letter s prolonged, as a snake does, or as steam does when forced under pressure through a small opening.
buzzed — a low, vibrating, humming sound, as of bees, machinery, or people talking.
murmured — a low, continuous sound, as of a brook, the wind, or trees, or of low, indistinct voices.
whispered — rumored; reported: He is whispered to be planning to run for governor.