Does sound and picture synchronization mean that sound and picture occur synchronously and end at the same time?

Refers to the inconsistency of sound and picture content, which is contrary to the synchronization of sound and picture, and is divided into two situations: opposition and juxtaposition.

1. The opposition between sound and painting means that the sound is opposite to the content of the picture. Sound is not an accessory or supplement to the picture, but excavates the inner activities of the characters from the opposite direction, or creates some emotions and hints some thoughts. The opposition between sound and painting produces new appearances and forms new characteristics, which can sometimes become a montage of metaphor. For example, I can't stop loving you, and it feels good. In Happy Hour, Wu Ying went home to see the magpie's nest, but the sound at this time was roaring applause and cheers. The enthusiasm and cheerfulness conveyed by the voice were in great contrast with the hero's mood, and the counterpoint of sound and painting set off the disappointment, resentment, anxiety and panic of the characters.

2. Sound and painting are parallel, that is, walking side by side. The sound and the picture content are neither complementary nor antagonistic, but two tracks, each going its own way. Like two parallel lines, each extending in its own direction. This combination can increase capacity and sometimes generate new ideas. For example, singing while spinning in the yellow land, singing and picture content develop in parallel, and there is no necessary connection between them.

The opposition between sound and painting and the parallel between sound and painting is a special relationship between sound and painting, which can only be done occasionally in movies. If this combination is used well, it can express more content and produce more aesthetic associations.

Sound string position

The combination of sound and picture content can be synchronous or asynchronous, and the time coordination can be simultaneous or different. Under normal circumstances, sound and picture should be synchronized. Sometimes, in order to express a supervisor's mood or create a special atmosphere, the sound appears before or after the picture, forming a time difference between the sound and the picture, which is called sound concatenation and is divided into front and back strings.

1, before the sound string, the sound precedes the graph. This is called before the sound string. In Patriot, there are many scenes before the strings. Before each war, the March played by the Scottish bagpipes sounded, and the scene of the two armies fighting appeared in the picture. Before this tone string, it showed the explosiveness and continuity of the war and created a war atmosphere with constant gunfire.

2. After the sound string, the sound indicating the picture disappears, but the sound is still there. This situation mostly shows the psychological state of the characters. For example, after the disaster, people always hear the sound of secondary disasters because of fear and fright, psychological imbalance and mental abnormality, which shows that the characters are not out of the nightmare. For example, there is such a scene in the Battle of Huaihai. After a fierce battle, our army suffered heavy casualties. The martyrs lay quietly in a big room, the old lady was cleaning the body, and the older sisters were tearing white cloth to wrap the body. Then rows of martyrs wrapped in white cloth were slowly pushed out of the painting. But the sound of tearing cloth still exists, and the volume is getting louder and louder, filling the whole screen. At this time, the sound of cloth shook every audience. A piece of white cloth for each car means one more martyr. Although the picture of the martyr has been hidden, the picture continues to unfold in the audience's mind with the sound of tearing cloth. The lens after this group of sounds is better in aesthetic effect than the synchronization of sound and picture. The reason is that there is a short blank on the screen after the picture is hidden, so that the sound can be fully played and the audience has time to feel and think when listening to its sound.

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