Audio-visual documents from the National Library of France Mitterrand

The National Library of France has an extremely rich collection of audio-visual documents, ranking first among libraries in the world, and the supporting audio-visual technology is even more world-class. The museum has a dedicated audio-visual document department, which preserves everything from the earliest wax carriers to modern DVDs, from a certain writer's radio recordings in the past to the film works of the 1950s, from the earliest gramophone music to various modern pop music. All kinds of music are available. Among them, there are more than 20,000 kinds of music documents, more than 10,000 pieces of sound materials, and more than 30,000 kinds of video materials. These audio-visual materials and multimedia documents constitute the unique information resources of the National Library of France, providing powerful and intuitive evidence for the study of a specific social phenomenon and the study of human cultural processes. Although most of these audio-visual materials have been digitized and can be directly called by readers on the computer terminal in the audio-visual room, they still collect and preserve the supporting equipment used to play these materials in their original carrier form. Such as gramophone, LP player, tape player, tape recorder, CD player, video player, movie player, CD player, DVD player, etc. What is surprising is that when readers enter the audio-visual room, they do not see messy audio-visual equipment. What they face is just a computer screen, a keyboard and a mouse. In the audio-visual room with more than 400 seats, comfortable chairs, a large reading table, and moderate lighting create a beautiful audio-visual environment for readers. Advanced digital technology and retrieval technology have concentrated these tens of thousands of audio-visual materials into a system computer terminal. Readers can select the audio-visual materials they need from the catalog, and the selected materials will be called up with just one click of the mouse, and can be processed. Multimedia combination retrieval. For example: if a reader conducts special research on the famous French writer Sarote, the system will also provide a feature film on the famous French writer Sarote filmed on TV in 1979, two photo albums and a disc of Sarote. The recording material of Te's own novel "Childhood". Readers can jump from one file to another, which is very convenient to use. Since most of the audio-visual materials have been digitized in advance, readers do not have to worry that the materials they choose have been occupied by others. The system allows multiple people to read the same material at the same time.

There are also quite a few materials that are rarely used by multiple people at the same time due to the small number of users. There is no need for digital processing. They are preserved in the original carrier form. However, the library uses computer simulation technology and the system can Allow readers to call these materials from a terminal. These materials are located in three fully enclosed audio-visual databases, each managed by three robots 2.5 meters high and 3 meters wide in diameter. When a reader uses the mouse on the computer in the audio-visual reading room to select an audio-visual document from more than 10,000 audio, video or CD catalogs, he never expects that a robot is providing services to him behind the scenes. In fact, when a reader clicks on an audio-visual material with the mouse, these three huge machines take out the video tape or CD disk from the shelf in the audio-visual material library and put it on the player so that the reader can click on it from the audio-visual material in the reading room. This material is opened on the computer, and when the reader exits the material, they take the material off the player and put it back to its original position. The time to pick up and place the material only takes 2 seconds.