Rain is a functional, nature-sound subgenre that focuses on unadorned or lightly processed recordings of rainfall—ranging from gentle drizzle and roof patter to heavy downpours and distant thunder.
It is designed primarily for sleep, relaxation, meditation, tinnitus masking, and environmental ambience. Producers often strive for long, seamless loops with stable loudness, minimal sudden transients, and a broad spectrum wash that acts like pink/white noise. While many releases are purely natural sounds, some incorporate subtle ambient pads, low drones, or spatial processing (binaural/ambisonic) to enhance immersion.