Silver has its own studio, with its own printing workshop. After each scene of the film, the film is developed out of the printing workshop, and after the director approves it, the editor will edit it. By the time the film was finished, the rough cut was basically completed. The next step is to edit, score, mix, subtitle, and finally produce the film.

The soundtrack for "Cold" is Lo Wing-fai, who graduated from Taibend Normal University in 1972 with a degree in Music Education, and in 1979 with a Master of Music degree from the University of California. The reason why Xu Wangqiu invited him to be the composer was mainly because he liked the music he composed for "Running to the Angry Sea", and felt that his composition style was more suitable for "Cold".

At the time of the filming, Luo Yonghui had already begun to compose. Xu Wangqiu has ideas about which scene is how long, which scene needs music, and what kind of music is needed for which scene. During the filming of the movie, Luo Yonghui had many exchanges with Xu Wangqiu and went to the filming site. After the filming of the movie, he has also completed the composition work, just waiting for Xu Wangqiu to make a decision.

After the film was cut, Xu Wangqiu and Luo Yonghui watched the movie together, and then reviewed the tune.

"Cold" is a heavy and depressing story, and the film's multiple soundtracks, Xu Wangqiu wants to use the cello. However, Luo Yonghui felt that the matouqin might be more suitable, so he made a music sample and brought it for Xu Wangqiu to review.

The sound of the cello and the horse-head violin have their own characteristics, the sound of the cello is deeper, and the sound of the horse-head violin is more desolate. Take the scene of Zheng Yi's wife dying as an example, Zheng Yi hugged his wife and cried bitterly, the low voice of the cello, as if pulling in his heart, made people feel Zheng Yi's pain, and the desolate voice of the horse-head qin made people feel more lonely and helpless, combined with the plot of the movie, giving a sense of fate, which will make people feel the despair of being powerless in front of fate.

After listening to the sample, Xu Wangqiu felt that Luo Yonghui was right, and the matouqin was more suitable for "Cold".

After discussion, the music of some scenes of the movie was determined, and the music of other scenes needed to be adjusted, the music of some scenes was canceled, some scenes needed to be added, and some scenes needed to be replaced.

Ten days later, Luo Yonghui came with the latest tune. Xu Wangqiu was very satisfied after listening to it, and felt that these pieces were what he wanted, and directly announced that he could find a symphony orchestra to play them.

After the soundtrack is completed, the post-production work of the film is more than half complete.

On this morning, Xu Wangqiu saw the media report on the release of "Return of the Jedi" in Xiangjiang. This is the final installment of the Star Wars trilogy, and a sequel will not be released until nearly 20 years away.

Xu Wangqiu is not particularly interested in the story of "Star Wars", but he still wants to go to the cinema to see it. He invited Yan Hao and the post-production staff to watch this Hollywood masterpiece and relax.

Everyone naturally applauded, after all, it was Xu Wangqiu's treat, and he must not look at it in vain.

Yan Hao even suggested: "Let's go to the Broadway movie theater in Anle, Broadway has just introduced the latest stereo system from the United States, and it is said that the effect of Hollywood movies is particularly shocking." ”

Xu Wangqiu was very excited to hear that he could watch a stereo movie, he hadn't seen a stereo movie for more than ten years. Nowadays, mainland movies are basically mono, and even if there are so-called stereo movies, they are only two-channel, not multi-channel. I can't help but ask, "Is the Broadway stereo 424 stereo or 5.1 channels?"

Yan Hao looked confused: "What is 424 stereo sound, and what is 5.1 channel channel?"

In the future, if any director asks the question "what is channel 5.1", he will definitely be regarded as an idiot. But it's not surprising that directors of this period don't know about 5.1 channels, after all, mono is now the mainstream, and 424 stereo and 5.1 channels are new technologies that have just come out a few years ago.

The first real multi-channel stereo film in the mainland was "The First Woman in the Mountains and Forests" in 1986, which used Dolby's 424 stereo technology, and the first 424 stereo film in Hong Kong was "The New White-Haired Witch" in 1993, a few years later than the mainland.

Mainland and Hong Kong filmmakers do not pay much attention to the post-production of films, especially the sound effects. It was not until 1998 that the Best Sound Recording Award was set up for mainland films, and the Best Sound Effects Award was also set up at the Hong Kong Film Awards in the same year. The Oscars in the United States established the sound award in 1930, and by 1963, there were two awards: best sound and best sound editing.

From this point, we can see how big the gap between the mainland and Hong Kong and the Hollywood film industry is.

Xu Wangqiu explained: "The 424 stereo has four channels, the front of the screen has three channels on the left, the center and the right, and a set of surround sound behind the cinema; There is only one channel behind the 424 stereo, there is no distinction between left and right, and the orientation cannot be determined. The 5.1 channel is followed by two sets of surround sounds, left and right, which can create a sense of space. In addition, the 5.1 channel also has a subwoofer channel, such as explosions and drumming, which are released through the subwoofer equipment, which can create a very shocking effect. ”

Yan Hao said curiously: "Wangqiu, how can you understand this?"

Xu Wangqiu said calmly: "Film is an audio-visual art, and sound is a very important part of film language. You like art films, and you may not be that demanding sound. I make commercial films, and I pursue immersion, hoping to bring the audience an immersive feeling. The more realistic the sound, the more immersive the audience will be. Therefore, I attach great importance to sound and have been paying attention to the development of foreign stereo technology. ”

Yan Hao suddenly realized: "No wonder you understand it so well, it turns out that you have been researching." ”

Xu Wangqiu remembers that the "Star Wars" trilogy was shot on 70mm film, the first part made a super bass, and the last two parts used 5.1 channel technology. I don't know if the stereo system introduced by Anle is 5.1 channels, if it is 5.1 channels, it can really be a feast for the ears.

When he arrived at the Broadway theater, Xu Wangqiu couldn't help but shake his head slightly when he saw the size of the screen: "It's 424 stereo, not 5.1 channels." ”

"The movie hasn't started yet, how do you know it's not 5.1 channels?" Yan Hao said in surprise.

"A screen of this size is definitely a film on 35mm film, not a film on 70mm film, and 35mm film can only achieve four channels, not six channels. So, this cinema is definitely 424 stereo. ”

"Why can't 35mm film be made into 5.1 channels?"

"You are also a director, you should know that the picture of the film is one frame at a time on the film, and there is a thin black bar on one side of the picture grid, and the sound is stored in the black bar. If you have developed the film, you will see a white wavy line in the black bar, which is the sound track.

There is an excitation light in the movie projector, which can emit a light blade through the focuser, and a photoelectric sensor opposite the focuser, which converts the light signal into an electrical signal. As the film passes through the middle of the photosensor, the light blade emitted by the focuser shines right on the film's soundtrack. The light of the blade is very stable, but when the blade moves on the soundtrack, it will form light of different intensity due to the change of the soundtrack. When the photoelectric sensor receives these different levels of light, it forms a constantly changing current signal. These signals are amplified and fed into the speakers, where they become the sounds that the audience hears.

Due to the limited space of the black bars on the film, there is no way to store much content. The 424 stereo has four channels, but in fact, four channels do not survive on 35mm film. It wasn't until a few years ago that Dolby came up with a new technique that compressed four channels into two sets of soundtracks recorded on 35mm film, and then restored to four channels by a decoder. The four channels were recorded onto two soundtracks, which were then restored to four channels, so it was called 424 stereo.

Six-channel channels are now not possible with 35mm film, only with 70mm film. At first glance, this screen is an ordinary screen, not a huge screen like a 70mm film movie, and obviously it can't be a 5.1 channel. However, although the 424 stereo is not as good as the 5.1 channel, it is much stronger than the mono, and you can feel the amazing effect of the stereo for a while. ”

Yan Hao admired Xu Wangqiu so much: "Wangqiu, you know so much!"

It didn't take long for the lights in the screening room to go out, the screen to light up, and the movie to begin.

"Return of the Jedi" continues the plot of the first two parts of "Star Wars", mainly telling the story of the rebels attacking the Death Star, defeating Palpatine, and freeing the galaxy. The box office and word-of-mouth of the movie in Europe and the United States are not as good as the first two, but the scene is more grand than the first two. The entire film cost $32.5 million, and the audiovisual effects are top-notch.

Yan Hao: They watched a stereo movie for the first time, and they were all deeply shocked by 424 stereo. In the past, movies only had one channel, and the sound had no sense of orientation or space. 424 stereo sound is different, it has four channels, you can clearly feel the presence of the direction, the person who speaks is on the left, that is, the speaker on the left, the speaker is on the right, it is the horn on the right, as if you are the protagonist, as if you are on the scene.

Yan Hao and the others are all immersed in the plot of the movie, and like the hundreds of audiences in the screening hall, their hearts can't help but rise and fall as the story progresses. They worry about the safety of the protagonist, they scream for the thrilling scenes in the movie, they are for the grand scene today, they cheer for the victory of the protagonist.

Xu Wangqiu is not very satisfied, this kind of movie must require 5.1 channels to present the best effect. It's okay if "Return of the Jedi" doesn't have 5.1 channels, but "Return of the Jedi" has 5.1 channels, but because there is no playback equipment, it can't enjoy the best audio-visual effects, which is a pity.

After more than two hours of film, the audience stood up reluctantly. Their excitement is not over, and they are enthusiastically talking about their inner feelings with their friends and companions, and they are talking about their love for movies. They talked about it, discussed the plot of the movie, discussed the characters in the movie, and their opinions were very different, but one thing was the same: you would definitely regret missing this movie!

Yan Hao couldn't suppress the excitement in his heart: "The stereo effect is so good, it's just shocking." ”

Xu Wangqiu thought to himself that this is just 424 stereo, and when you see 5.1 channels in the future, you will know what the real shock is, and he smiled: "Stereo will make you feel that you are wrapped in sound, as if you are on the scene, and the sense of substitution is particularly strong." For commercial films, the most important thing is the sense of substitution, so stereo will definitely replace mono in the future and become the mainstream. ”

Yan Hao couldn't help but say: "Since you understand stereo sound, can we make stereo sound in this movie?"

Xu Wangqiu shook his head: "You can do it, but you can't do it in the mainland and Xiangjiang, so you can only go to the United States to do it." The whole sound effect has to be done, which not only takes time, but also costs a lot of money, and I am afraid that I can't do it without one or two million. Our movie is a feature film, the plot is depressing, it is difficult to say how the box office is, and the movie is relatively dark, I am afraid it will be difficult to release it in the mainland. It's better not to increase the cost, otherwise the movie will lose money, and I won't be able to explain it to Sister Xia Meng. ”