Chapter 14 Preparation for War Sound Film

After the officers knew that the matter of the two commanders had to be done, they all took the initiative. Everyone is a smart person, so why don't you do it as well as possible? It was much easier for the officers to take this matter as their own. As for the candidates for political commissars, some of them said: "Then whoever can say that he knows how to be popular and has good popularity, let him do it." ”

Some said: "Then whoever has a good character, let him do it!" ”

Some said: "Then whoever has culture, let it go!" ”

Little by little, the candidates for the political commissar at the regimental level were determined. Once the candidates for the commissars were identified, they were immediately notified by telegram to come to one to report on the training. Li Yan personally taught them lessons and taught them how to be good political commissars.

Zhang Zhimu knew that after these political commissars took office, they still needed a run-in period with the military commanders.

In order to let the regimental-level military commanders also have a certain understanding of this matter, Li Yan suggested that after the division commanders returned, all the regiment commanders should be transferred to Yaogang to participate in the study.

There are too many officers in the kiln gang at this time, and many of these regiment commanders and newly elected political commissars rarely have the opportunity to come to the kiln gang, so this time they have to have a good visit. However, like all the soldiers in the kiln, they went out in two and three in a row. The good quality and image of these officers in bright uniforms have had too great an impact on the people around them. They had never seen such an army. In the past, those who met soldiers were far away, but now they don't need to use it at all. On the train, the soldiers will take the initiative to give up their seats to everyone, which was unimaginable before. Here, the military is definitely an honorable profession. There are many teenagers who can't stop wanting to join the army.

When Zhang Zhimu returned home, Xiaoqing and Xiaohu told Zhang Zhimu that they must become soldiers when they grow up in the future.

Zhang Zhimu asked them why they wanted to be soldiers, and they all said that the military uniform was so beautiful, and it was very energetic to walk on the street, and our classmates all said that they wanted to be soldiers when they grew up.

Zhang Zhimu knows that this is because the soldiers in Yaogang are now treated very well, and their social image is good, and the most important thing is that they always win battles.

Without checking the preparations for war, Zhang Zhimu, Chen Yufeng, and Ouyang He invited Lu Chengxiang and Li Yunhe over to discuss the preparations for logistics supplies.

Lu Chengxiang said: "Don't worry about logistics, now the winter clothes of soldiers and officers have been distributed, and the recruits are wearing new winter clothes. Mr. Huang and the others are rushing to make summer clothes, and they can do it all before the beginning of spring. Our military uniforms are very strict, and it takes a bit of effort to make them, otherwise they would have been finished long ago. The medicine 'Shenshou Zhang' is also very well stocked. Qingfengzi's sulfonamides, except for some used in the hospital, are all prepared. Enough for the army. Li Wei and his sappers prepared a lot of tools and personnel to build bridges and open roads. Li Di has prepared a lot of zinc sulfate for their electric poles, and when it is time to erect the electric poles, they can use the trees by cutting down trees and soaking them in zinc sulfate. Some telephone lines are also available, and some will be prepared next year. ”

Li Yunhe also said with a big grin: "You can rest assured about weapons and ammunition." Now the troops are fully equipped with automatic rifles and mortars. That is, 130 heavy guns need to continue production next year. Air-cooled heavy machine guns and squad light machine guns will be available to the troops in the first half of next year. Since you didn't say that you want so many of these heavy machine guns and light machine guns, most of them need to be produced now, so there will be a little delay. The 130 gun can be completely switched to *** charge shells, and 120 heavy mortar shells can also be used with a part of *** charge shells. Don't worry about the bullets, the tube is enough. In addition, I have arranged for someone to work on the diesel generator, and it is estimated that it should be able to be used next year. High-power broadcast loudspeakers and amplifiers for propaganda are readily available, and they can be used by installing them in the car. ”

Chen Yufeng nodded and said, "I think the main things are almost the same." Then there are some officials who have taken over that have not been implemented, especially Xi'an needs a good official, which is the center of Shaanxi. ”

Zhang Zhimu smiled slightly and said, "I am optimistic about a person, what do you say about Xiurong Zhixian?" ”

Chen Yufeng and Ouyang He said in unison: "Okay! ”

Chen Yufeng said: "It's him, it's him." This man is incorruptible, but he is also very capable and understands our situation better. Know how to do what we ask us to do. ”

"This matter needs Mr. Zhang to personally go and invite us to know the county." Ouyang He said: "For other officials, we still have a year to prepare. Our army also has a year to train. And then we will conduct several large-scale exercises, so that we can expose those shortcomings that we still have. ”

"Alright! I don't care about the rest. Zhang Zhimu said: "Master Qingfengzi said that he wanted to find me, so I went to do my business." ”

Li Yunhe said: "Those of us who are engaged in gasoline engines also have something to look for you." ”

"I'll go to Qingfengzi now, and I'll go to you when I come back to see what's going on with their gasoline engine." Zhang Zhimu said.

Qingfengzi brought Zhang Zhimu good news this time, their movie camera can already shoot twenty-four pictures per second. Qingfengzi said: "After the improvement, I think it is okay to shoot faster, and I have asked them to try to shoot 48 frames per second in the past few days." The first is that the sensitivity of our film exposure has been greatly improved, and the second is that Sun Liang's lens has also improved a lot, especially the lens aperture has been increased, and the light transmission can be greatly improved. In this way, we can not only take photos faster, but also better quality. ”

Qingfengzi showed Zhang Zhimu a sample film they took. After watching it, Zhang Zhimu felt very satisfied, because the people in the point one were excited and couldn't see the effect of any animation, "I'll contact Yangchang and them as soon as I go back and let them participate in the production of your movie." I've asked them to make photocells, and the other day they said that the photocells have done well. In this way, we can make a movie with sound. ”

"Are you going to get a cassette tape next to the filmpiece?" Qingfengzi asked.

"That's one way, but the magnetic particles of the tape tend to fall off, and the sound effect is not good if the film is shown a few times. We can use the optoelectronic approach. In this way, when we speak sound, after it becomes an electrical signal, we can control the brightness of a small light bulb, and we use this brightness signal to expose a piece of film next to our film, so that the film will record the sound signal with the amount of exposure. After we finished developing, when we put it, we use a small lamp to shine on this film strip, and the light through this film shines on a photocell, and the photocell will generate an electrical signal with the intensity of the light, and this electrical signal is amplified by the transistor, and the original sound can be released through the horn. Zhang Zhimu explained to Qingfengzi the method of film recording.

Qingfengzi nodded and said, "Yes, that's it." But is it necessary to make a movie and record at the same time? ”

"We can record at the same time as we shoot the film, we can also make post-production recordings, and we can add narration to some of the content. In the future, some of our courses can be recorded in movies and shown to students. If the student doesn't understand it once, he can listen to it again. Simultaneous recording is the simultaneous recording of the film with tape at the same time. When the film is being processed, the sound from the tape is then processed onto the film. However, the position of your projector to play the sound is a few frames different from the position of the film image, and the synchronization of the sound and the picture is a problem to consider when you are developing. ”

"It would be great if it were a movie with sound. Hurry up and arrange for Yangchang and them to come over, and let's study this matter together." Qingfengzi was a little anxious.

"Okay, I'll arrange it when I get back." Zhang Zhimu said: "If your sound movie is successful, I suggest that you make "Tang Guifei" into a movie. That way, more people will be able to see the play. ”

"In the future, can we also film the events on the battlefield?" Qingfengzi immediately thought about the things that people were most concerned about.

"Of course, no matter what is new in the future, you can use a movie to record the situation." Zhang Zhimu said.

"When I watch our films, I still have to be able to record the sound at that time." Qingfengzi has her own opinion.

"I can't take care of these things, it's your business." Zhang Zhimu said, "There is another thing, we should expand the production of sulfonamide drugs as much as possible, you see that there are many horse-drawn carriages in front of our hospital every day, they are all coming for sulfonamide drugs, many diseases that could not be cured in the past, just go to our hospital and use sulfonamides." It's a miracle medicine. ”

"Rest assured, our sulfonamides and *** will be mass-produced at the same time. Don't worry, this thing has saved a lot of people, and more will be saved in the future. Qingfengzi said, "There is one more thing, our synthetic ammonia and fertilizer production lines have been almost built, if it goes well, we can test production in the spring of next year." ”

Zhang Zhimu left Qingfengzi with joy and came to Li Yunhe's office.

Li Yunhe saw Zhang Zhimu coming, and asked jokingly: "What's good about that old way?" ”

"It's a great thing, their movies can now shoot 24 frames per second, and I don't see any animation at all when I see the filming activities, and the picture quality is also very good." Zhang Zhimu said.

"Let's go! Let's take a look at their gasoline engines to go. It seems that the gasoline engine is in a bit of trouble and has not made much progress. ”

Following Li Yunhe to the Engine Research Institute, Zhang Zhimu asked several people who were engaged in gasoline engines around him about the situation, and pointed out to them: "The ignition voltage you use is too low, the ignition is unreliable, and the ignition spark plug is not good, because at high temperatures, ordinary materials will be burned out in a few clicks, and the ignition equipment you use is used to detonate the first detonation line, but if you ensure that the gasoline engine is used for a long time, it will not work." Now Yangchang they are working on an oscilloscope, they have a circuit that can generate tens of thousands of volts of high voltage, I asked Yangchang to help you build a high voltage circuit. You make a ceramic base for spark plugs, and replace tungsten alloy with tungsten alloy for ignition metal, which is resistant to high temperatures. Actually, the best platinum, but we don't have it right now. In this way, you can match and synchronize the ignition, and the effect will be much better, don't be discouraged. I'll draw you a spark plug diagram right away. ”

A few people who were already exhausted from doing experiments and had no confidence listened to Zhang Zhimu's words, and they came to their senses again.

Zhang Zhimu said: "You can go to Yangchang with me now." I happen to have something to go over. I'll ask them to study high-pressure ignition with you. ”

These people immediately went to wash their faces, and happily followed Zhang Zhimu and Li Yunhe to their laboratory in Yangchang.

Yang Chang saw that Zhang Zhimu came over with a lot of people, and came up to Zhang Zhimu and let them to the office. Let someone pour water for them and ask, "Mr. Zhang, what are your instructions for coming over today?" ”

Zhang Zhimu pointed to the people who brought a few gasoline engines and said: "Several of them are engaged in engines, and now they are engaged in gasoline engines." The gasoline engine needs a high-voltage electric spark to ignite the atomized gasoline. This high voltage requires 10,000 volts, and I hope you can help build a circuit. There are still some specific things that you need to study. ”

"No problem, it's all about the kiln. We have a ready-made circuit like this, and the oscilloscope uses 10,000 volts, which is very good at ignition, but the voltage is high and the current is not large. Yang Chang said.

"You don't need much current, you just need to be able to ignite a spark." A gasoline engine said.

"Okay, I'll take you to study the circuit now, what kind of circuit board you need, the size and other shapes, you and them will study." Yang Chang led these people out and saw those who were engaged in high-voltage circuits.

Yang Chang came back and said, "I'll leave this matter to them." ”

Zhang Zhimu said: "There is one more thing I want to discuss with you. Are your photocells in order? ”

"It's easy to make some experiments, but there is no other use, we don't have mass production." Yangchang said.

"Okay, that's what I want you to say."

Zhang Zhimu introduced Qingfengzi's progress in their movies to Yangchang, and hoped that he would send someone to follow Qingfengzi to make sound movies. Zhang Zhimu also briefly introduced the principle of using photoelectric recording.

Yang Chang was also very interested in hearing this, and said: "But I just don't know if the film light transmission and the recorded sound signal are linear, if the linearity is not good, if you need to make compensation, there will be a lot of things." In this matter, I asked those who were engaged in tape recording to work with Master Qingfengzi. Estimated no major problems. ”

"Alright, if you can get the sound movie out as soon as possible, I can tell you right now, with this technology. The kiln gang can attract all the handsome men and women from all over the world. Wait and see! Zhang Zhimu joked.

"There's one more thing we've been worried about. Our long-distance phone calls, a little farther away, the sound is indistinct, the noise is very loud, and we have never come up with a good solution. Yangchang said with great embarrassment.

Zhang Zhimu said: "In this way, we can raise the signal level by one V volt before the telephone signal is transmitted, and after receiving it, it will be lowered by one V volt, which is equivalent to the received signal has not changed." But the noise should be smaller, because the amplitude of some of the noise in our line is V volts, and after the signal is raised, they will be superimposed in the V volt range, and we will lower it after receiving it, restore the original signal amplitude, and also reduce the noise. I'd like to tell you that the same is true for reducing the noise of recordings and recordings. But this v-size needs you to experiment. In particular, you have to consider how to deal with the phone after several relay amplifications. ”

"It's a great idea, and it's easy to make recordings and records. As for the phone, we can do the signal replies to the amplification before the relay is amplified, but that amplitude needs to be considered. Yang Chang said.

"In the future, we can also use frequency modulation for remote communication, and at that time, the voice signal can be pre-emphasized and de-emphasized, so that the signal can be basically maintained without distortion. Now we can only try to improve. Zhang Zhimu said: "An important task for you next year is to build automatic switches. Now that we have more and more telephones, it is not enough to increase the number of operators at the switchboard, they are all busy. Wouldn't it be a problem if it could be automatically exchanged? ”

"I've thought about it, too, but I've never come up with a good idea." Yangchang said.

"The first thing is to assign a number to each telephone. We can complete the automatic transfer by dialing. You think about it first, and I'll give you some advice when I have time. Don't expect me to come up with a complete solution this time. I'm telling you, I don't know what to do. Zhang Zhimu said.

"Huh! Let's do what you said, using the method of assigning a number to each phone, let's study it first. Yang Chang smiled and said, "But I have good news for you, our oscilloscope has some effect." Are you going to check it out. ”

"Good! That's good news, and with this stuff, you're going to have a lot of wings in electronics. Zhang Zhimu got up as he spoke, urging Yangchang. He wanted to see the oscilloscope so much. This is something that I couldn't live without every day in my previous life. Now it's a treasure here. However, the good oscilloscope of the unit was also bought for hundreds of thousands of yuan, and it is also a treasure.

When he came to another laboratory, Zhang Zhimu saw several people looking at something on a test table.

Yang Chang shouted, "Mr. Zhang is here!" ”

When they heard the shouting, they all straightened up and looked at them. At this time, Zhang Zhimu saw that there were some circuit boards on the experimental table, and a cathode ray tube was also set up. The tube showed some pulsing green lines. Zhang Zhimu knew that this was an electronically scanned line. Zhang Zhimu walked over in a few steps, looked at the pile of things, and asked, "The line came out, what is the signal you used to add?" ”

"We've attenuated the alternating current from the power supply." One person answered.

"Great idea!" Zhang Zhimu asked again: "Why is the signal not synchronized?" ”

"It was very well synchronized when I came in the morning. It shows a very stable sine wave. Now it's unstable again, and this thing is just a good thing and a bad thing. ”

"Don't be in a hurry to take your time, if you can come out, it means that we have no problem in principle, I guess there is something bad in contact in our adjustment part, or there is an unstable device. You look into the problem slowly. However, I suggest that you do several oscilloscopes at the same time and compare the experiments. In this way, through the different parameters of several machines, you can compare where the problem is. Zhang Zhimu knew that there was no other reference method, if it was due to the instability of the device, the only way to find the problem was to use comparison.

"We're also trying to rebuild an oscilloscope. I think we'll listen to Mr. Zhang, get two together, and compare them. ”

"You must carefully screen the components, especially when developing new products, the screening of devices is more important, and do not affect our entire progress because of device problems. Maybe the good parts you have screened out will be ready to use in no time. Zhang Zhimu told them that this is all from experience.

It was a harvest all day, and Zhang Zhimu was very happy, but when he returned home in the evening, Huang Yukun had another problem with Zhang Zhimu.

Now the affairs of the tram company are managed by Huang Yukun and them. Huang Yukun said: "Now the elderly don't need money to take the car, and they are welcomed by everyone. But it's not a problem to have everyone bring their ID to the bus. Some people can't tell if they're sixty years old by their appearance. Now the driver and conductor of the train often quarrel with the passengers. ”

Zhang Zhimu smiled and said, "This thing is so easy to do!" ”

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The Song army occupied Hokkaido, and Yuankou landed on the island of Kyushu. Opening up the Japanese battlefield. --Progress of "Memories of the Southern Song Dynasty".