What is the system of phonographic disc recordings paired with a projector called?

The system of phonographic disc recordings paired with a projector is called a "sound film" or "talkie." This technology synchronizes audio recordings on discs with moving images projected on screen, allowing for the combination of sound and film. It was a significant advancement in cinema, enabling the first full-length films with synchronized sound. The system was notably used in early 20th-century films before the adoption of more integrated sound systems.