What type of sound is referred to as crackles?

Crackles are defined as short, sharp, and nonmusical sounds that resemble the noise produced by breaking or snapping something. They are often irregular and chaotic, contrasting with musical sounds, which are organized and produced by harmonic vibrations. Nonmusical sounds like crackles are typically more associated with acute noises that do not have a consistent pitch, reinforcing their classification as nonmusical. This aligns with the understanding of sound classifications in various contexts, including physical phenomena, medical examinations, and everyday life where such sounds might signify certain conditions or occurrences.