Silent films were typically shot between 16 to 23 frames per second depending on the year and studio, with 16 becoming most common. Silent film actors relied heavily on body language and facial expressions since there was no sound or dialogue. Live music was almost always played during screenings of silent films to provide emotional cues for audiences. Silent comedy developed as a distinct acting style to bring humor to the silent film medium before synchronized sound was possible and still influences comedy today. Subtitles were commonly used in silent films to convey dialogue and explain the context of scenes.