The word 录音 is formed by logically combining two meaningful characters: 录, which means "to record" or "to copy down", and 音, which means "sound". It follows a straightforward action-object conceptual pattern, where the first character denotes the action (to record) and the second character denotes the target of that action (sound). Together, they merge into a single, unified concept meaning "to record sound" or, as a noun, "a sound recording". This formation is a direct and transparent representation of the process it describes.