dribbling / drippings
droppings (with perhaps an implication that the subject matter, tone, or author is not saying anything worthwhile, not credible, etc.)
speckles / sparks / stains / crumbs
some of these are reaching, but there are surely some physical actions like painting or elsewhere you can lowjack if you are feeling crafty
spatters / spatterings / sputterings / splatterings
drone / droning / whining / whistling / twinging / piercing / buzzing / scraping / screeching / grinding / blending (e.g. if the chatter is aggravating)
clanking / clangor / jingling / chipping / splintering
depends on the context what effect you are going for.
"precise" can mean "the word that best describes such a scientific phenomenon" (perhaps this is a research paper on audio algorithms) which previous posters covered well.
but for a fiction book, precision might mean "sets the mode" most effectively, with far more leniency on allegorical allusions and less emphasis on dictionary definitions.
are you looking for an objective answer, or an emotional one?