Meaning: The sound of pencils writing on paper was clearly audible.
Choice of Words: The word "pencils" refers to writing implements made of graphite or similar material used for writing or drawing. "Scratched" means to make a series of marks or lines on a surface, often with a sharp object. "Paper" is a thin material made from the pulp of wood or other plant fibers, used for writing, printing, or packaging. "Loudly" means with a high volume or intensity of sound.