visible sound is a whole of the electromagnetic print
sound is vibration_of_air. visible_light is non_ionizing_radiation. sound is vibration. acoustic_noise is sensory_information. audible_sound is sound. animal_noise is audible_sound. visible_light is electromagnetic_radiation. sound_of_heartbeating is audible_sound. audible_sound is wave_propagation. synthetic_sound is audible_sound.